The whole toolbox.
Filter by category, search by keyword, or just scroll. Every tool runs entirely in your browser — no uploads, no accounts, no friction.
Showing all 639 tools
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, or Sentence case.
Word Counter
Count words, characters, sentences, paragraphs, and reading time instantly.
Character Counter
Count letters, digits, punctuation, whitespace, and more.
Remove Duplicate Lines
Strip duplicate lines from a list while preserving order.
Remove Extra Spaces
Collapse multiple spaces, trim lines, and drop blank lines.
Reverse Text
Reverse text by characters, by words, or by lines.
Sort Lines Alphabetically
Sort a list of lines A→Z or Z→A.
Text to Binary
Convert text to space-separated 8-bit UTF-8 binary.
Binary to Text
Decode space-separated 8-bit UTF-8 binary back to text.
Fancy Text Generator
Turn plain text into bold, italic, script, monospace, and other Unicode styles.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text — words, sentences, or paragraphs.
Slug Generator
Convert any title or sentence into a clean, URL-safe slug.
Text Diff Checker
Compare two pieces of text line-by-line with a clean visual diff.
JSON Formatter & Validator
Beautify, minify, and validate JSON.
Base64 Encode/Decode
Encode and decode Base64, UTF-8 safe.
URL Encoder/Decoder
Percent-encode and decode URL components safely.
HTML Encoder/Decoder
Escape and unescape HTML entities — named and numeric.
Password Generator
Cryptographically random passwords with length and character-set controls.
UUID Generator
Generate one or many RFC 4122 v4 UUIDs (and nil UUIDs) in your browser.
Timestamp Converter
Convert between Unix epoch, ISO 8601, and local time. Instant + live clock.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text.
Regex Tester
Test JavaScript regular expressions with live highlighting and group breakdown.
JWT Decoder
Decode JSON Web Tokens (header, payload, exp/iat) locally — never validates the signature.
CSS Minifier
Strip comments and whitespace from CSS to shrink the size of stylesheets.
HTML Minifier
Collapse whitespace and strip comments from HTML — preserves pre/script/style.
SQL Formatter
Pretty-print SQL queries with newlines, indentation, and consistent keyword case.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
QR Code Generator
Generate scannable QR codes for URLs, Wi-Fi, contacts and more — export PNG or SVG.
Image Compressor
Shrink JPG, PNG, and WebP images directly in your browser with full quality control.
JPG to PNG Converter
Convert JPG / JPEG images to PNG in batch, entirely in your browser.
Color Picker
Pick a color, convert between HEX, RGB, HSL, and find the closest Tailwind shade.
PDF Optimizer
Shrink a PDF in your browser: strip metadata, drop pages, recompress structure.
PDF Merge
Combine multiple PDFs into a single file — reorder, then download.
Favicon Generator
Upload one image, get every common favicon size + an .ico bundle.
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes.
Percentage Calculator
Percent of a number, percent change, tips, and discounts in one place.
BMI Calculator
Calculate your Body Mass Index with a healthy weight range — metric or imperial.
Loan Calculator
Calculate the monthly payment, total interest, and payoff date on any fixed-rate loan.
Mortgage Calculator
Estimate your monthly mortgage payment, total interest, and PITI with a per-year interest chart.
Compound Interest Calculator
See how a lump sum grows with compound interest — pick the compounding frequency and watch the curve.
Sales Tax Calculator
Add sales tax to a price, or extract the tax already included in a total.
Auto Loan Calculator
Estimate your car loan payment after down payment, trade-in, and sales tax.
Personal Loan Calculator
Estimate a personal loan payment, total interest, and the net amount after an origination fee.
Loan Payoff Calculator
See how much faster you pay off a loan — and how much interest you save — by adding extra each month.
Debt Payoff Calculator
Compare the snowball and avalanche strategies across all your debts — see months to debt-free and total interest.
Investment Calculator
Project the future value of an initial investment plus monthly contributions.
Savings Goal Calculator
Find how much to save each month to hit a goal — or how long your current plan will take.
Retirement Calculator
Project your retirement savings — nest egg, inflation-adjusted value, and growth to your retirement age.
ROI Calculator
Calculate return on investment — net profit, ROI percent, and annualized return.
Profit Margin Calculator
Calculate gross profit, profit margin, and markup from revenue and cost.
VAT Calculator
Add VAT to a net price, or remove the VAT included in a gross price.
Break-Even Calculator
Find how many units you must sell to cover your fixed and variable costs.
ROAS Calculator
Calculate return on ad spend — revenue generated per dollar of advertising.
CAC Calculator
Calculate customer acquisition cost — sales and marketing spend per new customer.
LTV Calculator
Calculate customer lifetime value and the LTV:CAC ratio.
Runway Calculator
See how many months of cash runway you have at your current burn rate.
Down Payment Calculator
See your down payment, loan amount, and loan-to-value — and whether PMI is likely.
Cap Rate Calculator
Calculate the capitalization rate of a rental property from its income and value.
Rental Yield Calculator
Calculate the gross and net rental yield of an investment property.
Cash-on-Cash Return Calculator
Calculate the cash-on-cash return on a real-estate investment.
Property Appreciation Calculator
Project a property’s future value at an annual appreciation rate.
401k Calculator
Project your 401(k) balance at retirement, including the employer match.
IRA Calculator
Project the future value of a traditional IRA with annual contributions.
Roth IRA Calculator
Project the tax-free future value of a Roth IRA with annual contributions.
FIRE Calculator
Find your FIRE number and how many years until financial independence.
Salary Calculator
Convert a salary between annual, monthly, biweekly, weekly, and hourly pay.
Overtime Pay Calculator
Calculate overtime and total pay from your hourly rate, hours, and multiplier.
Pay Raise Calculator
See your new salary and the raise amount after a percentage increase.
Commission Calculator
Calculate commission earned and total pay from base salary, sales, and rate.
Freelance Rate Calculator
Find the hourly rate you must charge to hit a target income after expenses.
APY Calculator
Find your effective annual yield (APY) from a nominal rate and compounding frequency.
Simple Interest Calculator
Calculate simple interest and the total from a principal, rate, and term.
CD Calculator
Calculate the maturity value and interest on a certificate of deposit.
Rule of 72 Calculator
Estimate how long it takes to double your money at a given return.
Interest Rate Converter
Convert between APR and APY for any compounding frequency.
Tip Calculator
Work out the tip and total for any bill and tip percentage.
Bill Split Calculator
Split a bill (with optional tip) evenly across any number of people.
Discount Calculator
Find the sale price and how much you save from a percentage off.
Unit Price Calculator
Compare two products by price per unit to find the better deal.
Cash Back Calculator
Estimate the rewards you earn from a cash-back rate on your spending.
Budget Calculator
Split your income into needs, wants, and savings with the 50/30/20 rule.
Savings Rate Calculator
Find what percentage of your income you save each month.
Emergency Fund Calculator
Work out how much to keep in an emergency fund for your expenses.
Debt-to-Income Calculator
Calculate your debt-to-income ratio from monthly debt and gross income.
Net Worth Calculator
Calculate your net worth from everything you own minus what you owe.
NPV Calculator
Calculate the net present value of a cash-flow series at a discount rate.
IRR Calculator
Find the internal rate of return of a cash-flow series.
Payback Period Calculator
See how long it takes to recover an investment from annual cash flow.
Dividend Yield Calculator
Calculate dividend yield and annual income from a share price and dividend.
CAGR Calculator
Calculate the compound annual growth rate between two values.
Rectangle Calculator
Calculate the area and perimeter of a rectangle from its width and height, with a labeled diagram.
Circle Calculator
Calculate the area and circumference of a circle from its radius, with a labeled diagram.
Triangle Calculator
Calculate the area (Heron’s formula) and perimeter of a triangle from its three sides.
Trapezoid Calculator
Calculate the area and perimeter of a trapezoid from its two parallel sides, height, and legs.
Parallelogram Calculator
Calculate the area and perimeter of a parallelogram from its base, height, and side.
Cube Calculator
Calculate the volume and surface area of a cube from its side length, with a 3D diagram.
Sphere Calculator
Calculate the volume and surface area of a sphere from its radius, with a 3D diagram.
Cylinder Calculator
Calculate the volume and surface area of a cylinder from its radius and height, with a 3D diagram.
Cone Calculator
Calculate the volume, surface area, and slant height of a cone from its radius and height.
Rectangular Prism Calculator
Calculate the volume and surface area of a rectangular prism (box) from its length, width, and height.
Length Converter
Convert between metric and imperial length units — millimetres to miles — instantly in your browser.
Weight Converter
Convert between weight and mass units — kilograms, pounds, ounces, grams, stones, tonnes — instantly.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly.
Area Converter
Convert between area units — square metres, square feet, acres, hectares, and more.
Volume Converter
Convert between volume units — litres, millilitres, US gallons, quarts, pints, cups, and more.
Speed Converter
Convert between speed units — m/s, km/h, mph, knots, and feet per second.
Fraction Simplifier
Reduce any fraction to its simplest form and see the decimal value, instantly.
Fraction Calculator
Add, subtract, multiply, or divide two fractions and get the simplified result.
Decimal to Fraction Converter
Convert a decimal number into a reduced fraction, instantly.
LCM Calculator
Find the least common multiple (LCM) of two or more whole numbers.
GCD Calculator
Find the greatest common divisor (GCD / GCF) of two or more whole numbers.
Average Calculator
Find the mean, median, mode, range, count, and sum of a list of numbers.
Standard Deviation Calculator
Calculate the population or sample standard deviation, variance, and mean of a dataset.
Permutation and Combination Calculator
Calculate permutations (nPr) and combinations (nCr) for choosing r items from n.
Z-Score Calculator
Calculate the z-score (standard score) of a value given the mean and standard deviation.
Weighted Average Calculator
Calculate a weighted average (weighted mean) from a list of values and their weights.
Quadratic Equation Solver
Solve any quadratic equation ax² + bx + c = 0, including real and complex roots.
Slope Calculator
Find the slope, y-intercept, and equation of the line through two points.
Distance Calculator
Find the straight-line distance between two points on the coordinate plane.
Midpoint Calculator
Find the midpoint exactly halfway between two points on the coordinate plane.
Ratio Calculator
Simplify a ratio to lowest terms or solve a proportion a : b = c : x.
Right Triangle Calculator
Solve a right triangle from its two legs: hypotenuse, angles, area, and perimeter.
Pythagorean Theorem Calculator
Find the hypotenuse or a missing leg of a right triangle with the Pythagorean theorem.
Trig Function Calculator
Calculate sin, cos, tan, csc, sec, and cot of any angle in degrees or radians.
Law of Sines Calculator
Solve a triangle with the law of sines from two angles and one side (ASA/AAS).
Law of Cosines Calculator
Find the third side of a triangle from two sides and the included angle (SAS).
Prime Number Checker
Check whether a whole number is prime, and see its smallest factor if it is not.
Prime Factorization Calculator
Break a whole number down into its prime factors, with exponents.
Factor Calculator
List all the factors (divisors) of a whole number, and count them.
Fibonacci Calculator
Generate the Fibonacci sequence and read the nth term, up to 50 terms.
Sequence Calculator
Find the nth term and sum of an arithmetic or geometric sequence.
Vector Addition Calculator
Add two 2D or 3D vectors component-by-component and compute the magnitude of the resultant.
Vector Subtraction Calculator
Subtract two 2D or 3D vectors and find the magnitude of the difference.
Dot Product Calculator
Compute the dot product a · b and the angle between two 2D or 3D vectors instantly.
Cross Product Calculator
Compute the 3D cross product a × b and the magnitude of the resulting vector.
Vector Magnitude Calculator
Calculate the magnitude and unit vector of any 2D or 3D vector instantly.
Unit Vector Calculator
Find the unit vector (normalized direction) of any 2D or 3D vector by dividing each component by its magnitude.
Vector Projection Calculator
Find the scalar and vector projection of one vector onto another in 2D or 3D.
Angle Between Vectors Calculator
Find the angle between two 2D or 3D vectors in degrees and radians using the dot product formula.
2D Vector Calculator
Find the magnitude and direction angle of a 2D vector from its x and y components.
3D Vector Calculator
Find the magnitude and direction angles of a 3D vector with respect to all three coordinate axes.
Matrix Addition Calculator
Add two matrices of identical dimensions and see the element-wise result instantly.
Matrix Subtraction Calculator
Subtract two matrices of equal dimensions component-wise to find A − B instantly.
Matrix Multiplication Calculator
Multiply two matrices A (m×n) and B (n×p) to get an m×p product using the row-by-column rule.
Matrix Determinant Calculator
Compute the determinant of a 2×2, 3×3, or 4×4 matrix instantly.
Matrix Inverse Calculator
Find the inverse of a 2×2, 3×3, or 4×4 matrix — returns A⁻¹ where A·A⁻¹ = I.
Matrix Transpose Calculator
Swap the rows and columns of any matrix up to 4×4 instantly.
Matrix Rank Calculator
Find the rank of any matrix up to 4×4 by row-reducing it to echelon form.
Eigenvalue Calculator
Find the eigenvalues of a 2×2 matrix from its characteristic equation.
Divisibility Calculator
Check whether one integer divides another and get the quotient and remainder instantly.
Multiples Calculator
Generate the first N multiples of any integer instantly.
Even or Odd Checker
Instantly check whether any whole number is even or odd.
Lucas Sequence Calculator
Generate the first N Lucas numbers — a Fibonacci-like sequence that starts 2, 1, 3, 4, 7, 11, …
Catalan Number Calculator
Compute the nth Catalan number — counts valid bracket sequences, binary-tree shapes, and more.
Perfect Number Checker
Check whether a whole number equals the sum of its proper divisors.
Probability Calculator
Calculate the probability of an event, its percentage, and complement from favorable and total outcomes.
Conditional Probability Calculator
Calculate P(A | B) — the probability of event A given that event B has occurred.
Bayes Theorem Calculator
Compute the posterior probability P(A | B) from a prior, likelihood, and false-positive rate.
Binomial Distribution Calculator
Find P(X = k) for n trials plus the mean, variance, and a full PMF distribution chart.
Normal Distribution Calculator
Compute PDF, CDF, and survival probability for any normal distribution given x, μ, and σ.
Poisson Distribution Calculator
Calculate the probability of exactly k events in a fixed interval given an average rate λ.
Hypergeometric Distribution Calculator
Probability of exactly k successes in n draws from a finite population without replacement.
Uniform Distribution Calculator
Compute mean, variance, density, and cumulative probability for a continuous uniform distribution on [a, b].
Expected Value Calculator
Compute the expected value E(X), variance, and standard deviation of a discrete distribution.
Odds Calculator
Convert between odds and probability — odds for/against to probability, or probability to odds in favor.
Percentage Change Calculator
Calculate the percentage increase or decrease between two values using (new − old) ÷ |old| × 100.
Fraction to Decimal Calculator
Convert any fraction to its decimal equivalent instantly — handles terminating and repeating results.
Mixed Number Calculator
Convert improper fractions to mixed numbers and mixed numbers back to improper fractions instantly.
Significant Figures Calculator
Round any number to a chosen count of significant figures instantly.
Rounding Calculator
Round any number to a given number of decimal places or to the nearest multiple.
Proportion Calculator
Solve the proportion a : b = c : x for the unknown x using cross-multiplication.
Linear Equation Solver
Solve a·x + b = c instantly — handles unique solutions, no solution, and infinitely many solutions.
Cubic Equation Solver
Find all real roots of any cubic equation a·x³ + b·x² + c·x + d = 0 instantly.
System of Equations Solver
Solve a 2×2 linear system a₁x + b₁y = c₁, a₂x + b₂y = c₂ using Cramer’s rule.
Inequality Solver
Solve a linear inequality a·x + b (op) c for x, with automatic sign-flip detection.
Logarithm Calculator
Compute logₐ(x), ln(x), and log₁₀(x) for any positive value and base.
Exponent Calculator
Raise any base to any exponent — including negative and fractional powers.
Radical Calculator
Compute the nth root of any number or simplify a square root into its simplest radical form.
Circle Sector Calculator
Calculate the area, arc length, chord length, and perimeter of a circle sector.
Circle Chord Calculator
Calculate chord length and arc length from a circle’s radius and central angle.
Arc Length Calculator
Calculate the arc length of a circle from radius and central angle in degrees.
Square Calculator
Calculate the area, perimeter, and diagonal of a square from its side length.
Regular Polygon Calculator
Calculate area, perimeter, interior angle, and apothem of any regular polygon.
Hexagon Calculator
Calculate area, perimeter, interior angle, and apothem of a regular hexagon from its side length.
Octagon Calculator
Calculate area, perimeter, interior angle, and apothem of a regular octagon from its side length.
Ellipse Calculator
Calculate the area and perimeter of an ellipse from its semi-major and semi-minor axes.
Polygon Area Calculator
Calculate the area and perimeter of any polygon from its vertex coordinates using the shoelace formula.
Triangle Angle Calculator
Find all three interior angles of any triangle from its side lengths using the law of cosines.
Sine Calculator
Calculate the sine of any angle in degrees or radians instantly.
Cosine Calculator
Calculate the cosine of any angle in degrees or radians instantly.
Tangent Calculator
Calculate the tangent of any angle in degrees or radians instantly.
Inverse Sine Calculator
Find the angle whose sine equals a given value — returns arcsin in both degrees and radians.
Inverse Cosine Calculator
Find the angle whose cosine is a given value. Returns degrees and radians for any input in [−1, 1].
Inverse Tangent Calculator
Calculate arctan (tan⁻¹) of any real number — get the result in both degrees and radians.
Cotangent Calculator
Calculate cot(θ) for any angle in degrees or radians — returns cos ÷ sin.
Secant Calculator
Compute sec(θ) and csc(θ) for any angle in degrees or radians.
Angle Converter
Convert any angle between degrees, radians, gradians, and turns instantly.
Unit Circle Calculator
Find the exact (cos θ, sin θ) point on the unit circle for any angle in degrees.
Percentile Calculator
Find the value at any percentile in a data set using linear interpolation.
Quartile Calculator
Find Q1, Q2, Q3, and the interquartile range (IQR) for any list of numbers.
Interquartile Range Calculator
Find Q1, Q3, and IQR to measure the spread of the middle 50% of your data set.
Correlation Calculator
Calculate the Pearson correlation coefficient between two numeric lists.
Linear Regression Calculator
Fit a least-squares line to X/Y data and get slope, intercept, and R².
Frequency Distribution Calculator
Group a dataset into equal-width bins and see the count and relative frequency of each interval.
Histogram Generator
Visualise value distributions by grouping numbers into equal-width frequency bins.
Complex Number Calculator
Add, subtract, multiply, and divide two complex numbers instantly.
Complex Roots Calculator
Find all n distinct nth roots of any complex number using De Moivre’s theorem.
Scientific Calculator
Evaluate math expressions with trig, logarithms, powers, and common constants.
Derivative Calculator
Compute the numerical derivative f ′(x) of any expression at a given point.
Definite Integral Calculator
Numerically evaluate ∫ f(x) dx over [a, b] using composite Simpson’s rule.
Tangent Line Calculator
Find the tangent line to any function at a point — slope, intercept, and equation instantly.
Taylor Series Calculator
Expand any function as a Taylor polynomial up to order 4 about any center point.
Gear Ratio Calculator
Find the gear ratio, output speed, torque, and mechanical advantage of a gear pair, in metric or imperial.
Gear Train Calculator
Calculate the overall ratio and output speed of a multi-stage compound gear train.
Torque Calculator
Calculate shaft torque from power and rotational speed in metric or imperial units.
Power Transmission Calculator
Calculate the mechanical power transmitted by a rotating shaft from torque and shaft speed.
Belt Length Calculator
Calculate open-belt length from pulley diameters and centre distance in metric or imperial units.
Pulley Ratio Calculator
Calculate driven pulley speed and ratio from driver and driven diameters.
Chain Drive Calculator
Calculate chain length and link count for roller-chain drives from pitch, sprocket teeth, and centre distance.
Bearing Life Calculator
Calculate L10 bearing fatigue life in revolutions and hours for ball and roller bearings.
Shaft Diameter Calculator
Find the minimum solid shaft diameter for a given torque and allowable shear stress using the torsion formula.
Spring Rate Calculator
Calculate the stiffness of a helical compression spring from wire diameter, coil diameter, and active coils.
Spring Constant Calculator
Calculate spring stiffness from force and displacement using Hooke’s law k = F ÷ x.
Flywheel Energy Calculator
Calculate the kinetic energy stored in a solid-disc flywheel from its mass, radius, and rotational speed.
Clutch Torque Calculator
Calculate friction clutch torque capacity from clamping force, friction coefficient, and mean radius.
Brake Torque Calculator
Calculate disc brake stopping torque from pad friction, clamping force, and effective rotor radius.
Mechanical Advantage Calculator
Calculate the mechanical advantage of a simple machine from its load and effort forces.
Lever Calculator
Calculate the load a lever can balance using the law of the lever: effort × effort arm = load × load arm.
Rotational Speed Calculator
Convert between RPM, rad/s, Hz, and deg/s instantly for any rotating shaft or motor.
RPM Calculator
Find a shaft or wheel’s rotational speed from its surface speed and diameter.
Angular Velocity Calculator
Convert rpm to rad/s and calculate linear (tangential) speed at any radius instantly.
Angular Acceleration Calculator
Calculate angular acceleration from initial and final RPM over a time interval in rad/s².
Centrifugal Force Calculator
Calculate the outward centrifugal force on a rotating mass from its mass, radius, and speed.
Moment of Inertia Calculator
Calculate the mass moment of inertia of discs, rings, spheres, and rods about their central axis.
Stress Calculator
Calculate normal (axial) stress from force and cross-sectional area, in MPa or ksi.
Strain Calculator
Calculate engineering strain from the change in length and original length, with percent and microstrain.
Young’s Modulus Calculator
Calculate Young’s modulus (elastic modulus) from stress and strain, in GPa, MPa or ksi, and Mpsi.
Shear Stress Calculator
Calculate shear stress from shear force and the area resisting shear, in MPa or ksi.
Shear Strain Calculator
Calculate shear strain γ from lateral displacement and height, with the shear angle in degrees.
Beam Deflection Calculator
Calculate the maximum deflection of simply supported and cantilever beams under point or uniform loads.
Concrete Volume Calculator
Calculate concrete volume and weight for slabs — metric or imperial, with waste allowance.
Concrete Mix Calculator
Estimate cement bags, sand, and gravel for any concrete volume using standard mix ratios.
Cement Calculator
Calculate how many cement bags you need for any concrete pour by mix ratio and bag size.
Sand Calculator
Estimate how much sand you need to fill or cover an area — bedding, fill, or sandbox.
Gravel Calculator
Estimate gravel or aggregate needed to cover a driveway, path, or base course by area and depth.
Concrete Slab Calculator
Calculate concrete volume and cement, sand, and gravel quantities for any rectangular slab.
Brick Calculator
Estimate how many bricks you need for a wall — choose brick size, add a waste allowance, get a count.
Concrete Block Calculator
Estimate how many concrete blocks you need for a wall — pick block size, add waste, get a count.
Mortar Calculator
Estimate cement bags, sand volume, and mortar quantity for brick and blockwork walls.
Rebar Calculator
Estimate rebar quantities for a rectangular slab — bar counts, total length, and steel mass.
Earthwork Calculator
Estimate cut or fill earthwork volume and in-situ soil mass for a rectangular area.
Excavation Calculator
Estimate excavation (bank) volume and the loose hauled volume after soil bulking.
Asphalt Calculator
Calculate tonnes of asphalt to pave a driveway, road, or car park from length, width, and thickness.
Road Base Material Calculator
Estimate compacted crusher-run aggregate tonnage for road base and sub-base construction.
Pavement (Paver) Calculator
Count how many paving blocks or slabs you need to cover an area, with a waste allowance.
Roofing Calculator
Calculate sloped roof area and shingle bundles from the building footprint and roof pitch.
Tile Calculator
Calculate how many tiles you need for a room or wall — including waste and boxes required.
Paint Calculator
Calculate how much paint you need for a wall — enter dimensions, coats, and paint type.
Stair Calculator
Calculate the number of steps, riser height, and total run for a staircase, in metric or imperial.
Ramp Calculator
Calculate ramp run, sloped length, slope percentage, and angle from a rise and 1:n slope ratio.
Drainage (Rational Method) Calculator
Estimate peak stormwater runoff with the Rational Method to size gutters, drains, and culverts.
Footing Concrete Calculator
Estimate concrete volume and mix materials for rectangular pad footings.
Ohm’s Law Calculator
Solve for voltage, current, or resistance with Ohm’s law V = I × R, plus power dissipation.
Voltage Calculator
Calculate voltage from current and resistance using Ohm’s law, plus dissipated power.
Current Calculator
Calculate electrical current from voltage and resistance using Ohm’s law, plus power.
Resistance Calculator
Calculate electrical resistance from voltage and current using Ohm’s law, plus power.
Electrical Power Calculator
Calculate electrical power in watts using voltage, current, or resistance with three formulas.
Energy Consumption Calculator
Calculate how many kWh an appliance uses per day, month, or year from its wattage and run time.
Electricity Cost Calculator
Calculate the daily, monthly, and yearly cost of running any appliance from its wattage and rate.
Voltage Drop Calculator
Calculate voltage drop and percentage loss along a cable run for single-phase or three-phase systems.
Transformer Calculator
Calculate secondary voltage, turns ratio, and secondary current for an ideal transformer.
Transformer Turns Ratio Calculator
Calculate the turns ratio Np:Ns from winding counts or from primary and secondary voltages.
Capacitor Calculator
Calculate the energy stored in a capacitor or its capacitive reactance at any frequency.
Inductor Calculator
Calculate the energy stored in an inductor or its inductive reactance at any frequency.
LED Resistor Calculator
Calculate the series resistor value and power rating needed to safely drive an LED.
RC Circuit Calculator
Calculate the RC time constant and cutoff frequency for any resistor–capacitor circuit.
RL Circuit Calculator
Calculate the RL time constant τ = L ÷ R and settling time for a series resistor–inductor circuit.
RLC Circuit Calculator
Calculate the resonant frequency, quality factor, and bandwidth of a series RLC circuit.
Power Factor Calculator
Calculate power factor, phase angle, and reactive power from real and apparent power.
Three-Phase Power Calculator
Calculate real and apparent power in balanced three-phase AC systems from line values.
Single-Phase Power Calculator
Calculate real power in watts for a single-phase AC circuit from voltage, current, and power factor.
Battery Capacity Calculator
Convert amp-hours and voltage to watt-hours to compare batteries of any voltage on equal terms.
Battery Life Calculator
Estimate battery runtime from capacity, load current, depth of discharge, and system efficiency.
Solar Panel Output Calculator
Estimate daily, monthly, and yearly solar energy output from your panel array.
Solar Array Sizing Calculator
Calculate how many solar panels you need to meet your daily energy load.
Inverter Size Calculator
Calculate the recommended inverter size for your load with a margin for losses and headroom.
Generator Size Calculator
Calculate the recommended generator size from running watts, motor surge watts, and a margin.
Flow Rate Calculator
Calculate volumetric flow rate through a circular pipe from its inner diameter and flow velocity.
Pipe Flow Calculator
Calculate volumetric flow through a full-bore circular pipe from its diameter and flow velocity.
Water Flow Calculator
Calculate water flow through a pipe or outlet from its diameter and water velocity.
Pipe Velocity Calculator
Calculate the flow velocity inside a circular pipe from volumetric flow rate and inner diameter.
Pipe Diameter Calculator
Find the minimum pipe inner diameter for a required flow rate at a target velocity.
Water Pressure Calculator
Calculate static water pressure from a column height using P = ρ·g·h, in metric or imperial.
Water Demand Calculator
Calculate average daily water demand and peak flow for a population from per-capita usage.
Pump Power Calculator
Calculate hydraulic and shaft power for a pump from flow rate, head, and efficiency.
Pump Efficiency Calculator
Calculate pump efficiency from flow rate, total head, and shaft power.
Head Loss Calculator
Calculate pipe friction head loss with the Darcy–Weisbach equation.
Pressure Loss Calculator
Calculate pipe pressure loss using the Darcy–Weisbach equation for any flow, pipe size, and friction factor.
Hydraulic Power Calculator
Calculate hydraulic power from system pressure and flow rate using P = ΔP × Q.
Hydraulic Cylinder Calculator
Calculate hydraulic cylinder push force and extension speed from pressure, bore, and flow rate.
Hydraulic Force Calculator
Calculate the output force of a hydraulic piston from fluid pressure and piston diameter.
Hydraulic Pump Flow Calculator
Calculate hydraulic pump output flow from displacement, speed, and volumetric efficiency.
Hydraulic Motor Calculator
Calculate hydraulic motor output torque from pressure drop, displacement, and mechanical efficiency.
Reservoir Capacity Calculator
Calculate the storage volume of cylindrical or rectangular reservoirs and tanks.
Water Tank Calculator
Calculate water tank capacity for cylindrical or rectangular tanks and estimate fill time.
Irrigation Water Calculator
Calculate irrigation water volume and watering time from area, application depth, and flow rate.
Open Channel Flow Calculator
Calculate flow rate in open channels with Manning’s equation from roughness, area, radius, and slope.
Cooling Load Calculator
Estimate the cooling load for a room by floor area and room type, in BTU/h, kW, and tons.
Heating Load Calculator
Estimate the heating load for a room or building from floor area and insulation level.
HVAC Sizing Calculator
Estimate air-conditioner or heat-pump capacity in tons from conditioned area and application.
BTU Converter
Convert heating and cooling power between BTU/h, watts, kilowatts, and refrigeration tons.
Air Flow (CFM) Calculator
Calculate the airflow (CFM) needed to carry a sensible cooling load over a temperature difference.
Duct Size Calculator
Calculate the round duct diameter needed from airflow and air velocity for HVAC design.
Ventilation (Air Changes) Calculator
Calculate required ventilation airflow from room dimensions and air changes per hour.
Heat Transfer Calculator
Calculate heat flow through walls and materials using a U-value or thermal conductivity.
Heat Loss Calculator
Calculate fabric heat loss through walls, roofs, and windows using the U·A·ΔT formula.
Heat Gain Calculator
Estimate conductive heat gain through a wall, roof, or floor from U-value, area, and ΔT.
Cutting Speed Calculator
Calculate surface cutting speed (Vc) from tool diameter and spindle RPM for turning and milling.
CNC Speed (RPM) Calculator
Calculate the spindle speed (RPM) for a CNC operation from cutting speed and tool diameter.
Feed Rate Calculator
Calculate CNC table feed rate from spindle speed, feed per tooth, and number of flutes.
Machining Time Calculator
Calculate cutting time from cut length, feed rate, and number of passes for CNC and manual machining.
Tool Life Calculator
Calculate cutting tool life from Taylor’s equation V·Tⁿ = C for machining operations.
Material Removal Rate Calculator
Calculate the volume of material cut per minute for turning and milling operations.
Milling Calculator
Calculate cutting speed, table feed rate, and material removal rate for milling operations.
Turning Calculator
Calculate cutting speed, feed rate, and material removal rate for CNC and manual lathe turning operations.
Drilling Calculator
Calculate spindle speed, feed rate, and drilling time from drill diameter, cutting speed, and feed.
Production Rate Calculator
Calculate parts per hour, per shift, and per day from cycle time and line efficiency.
Takt Time Calculator
Calculate the pace of production needed to meet customer demand — available time divided by units required.
Cycle Time Calculator
Calculate the average time to produce one unit from net production time and units made.
Production Capacity Calculator
Calculate maximum unit output from available time, cycle time, and number of machines or lines.
OEE Calculator
Calculate Overall Equipment Effectiveness from availability, performance, and quality rates.
Economic Order Quantity Calculator
Find the optimal order quantity that minimises total inventory cost by balancing ordering and holding costs.
Process Capability Calculator
Calculate Cp and Cpk to measure how well your process meets specification limits.
Safety Stock Calculator
Calculate safety stock and reorder point to buffer against demand variability during lead time.
Reorder Point Calculator
Calculate the inventory level that triggers a new order so stock arrives before you run out.
Inventory Turnover Calculator
Calculate how many times you sell and replace inventory per year using COGS and average inventory value.
Little’s Law Calculator
Compute WIP, throughput, or flow time using Little’s Law for any stable process or queue.
Labor Productivity Calculator
Calculate output per labor hour to measure and track workforce efficiency over time.
Carbon Footprint Calculator
Estimate your annual CO₂ emissions from electricity, driving, and flights, and see how many trees offset them.
Fuel CO₂ Emissions Calculator
Calculate CO₂ emissions from burning petrol, diesel, LPG, or jet fuel by volume consumed.
Electricity Emissions Calculator
Calculate the CO₂ emissions from electricity use based on your regional grid emission factor.
Water Usage Calculator
Calculate total household or project water consumption from daily per-person use, people, and days.
Rainwater Harvesting Calculator
Estimate how much rainwater your roof can collect each year based on area, rainfall, and runoff coefficient.
Recycling Rate Calculator
Calculate your waste diversion rate and per-capita waste from recycled and total waste figures.
Air Quality Index Calculator
Convert a PM2.5 concentration into a US EPA Air Quality Index (AQI) score and health category.
Noise Level Calculator
Calculate combined decibel levels from two sound sources or sound level at a given distance from a point source.
Solar Energy Yield Calculator
Estimate annual solar energy production and CO₂ offset from system size and peak sun hours.
Tree Offset Calculator
Calculate how many trees you need to plant to offset a given amount of CO₂ emissions per year.
Emission Intensity Calculator
Calculate kg CO₂ emitted per unit produced to benchmark and compare production efficiency.
Velocity Calculator
Calculate average velocity from displacement and time, in metric or imperial units.
Average Velocity Calculator
Calculate average velocity from displacement and time, or from initial and final speeds.
Acceleration Calculator
Calculate average acceleration from initial velocity, final velocity, and elapsed time.
Average Acceleration Calculator
Calculate average acceleration from change in velocity and time interval in metric or imperial units.
Distance Speed Time Calculator
Calculate distance travelled given a constant speed and travel duration.
Displacement Calculator
Calculate straight-line displacement using initial velocity, acceleration, and time via s = v₀t + ½at².
Time Calculator
Calculate how long a journey takes given a distance and a constant speed.
Speed Calculator
Calculate average speed from distance and time — scalar magnitude, no direction needed.
Free Fall Calculator
Calculate fall time and impact velocity for an object dropped from height, or distance and speed after a fall time.
Projectile Motion Calculator
Calculate range, max height, and flight time for any projectile launch. Metric and imperial units.
Horizontal Projectile Motion Calculator
Calculate range, flight time, and impact speed for a horizontally launched projectile.
Vertical Motion Calculator
Calculate height, velocity, and peak altitude for an object thrown straight up.
Motion Equation Calculator
Calculate final velocity and displacement from initial velocity, acceleration, and time using SUVAT equations.
Relative Velocity Calculator
Calculate how fast two objects move relative to each other — same or opposite directions.
Stopping Distance Calculator
Calculate total stopping distance from speed, reaction time, and braking deceleration — metric and imperial.
Force Calculator
Calculate force from mass and acceleration using Newton’s second law (F = m·a).
Newton’s Second Law Calculator
Calculate force, mass, or acceleration using F = m·a with metric and imperial unit support.
Weight Calculator
Calculate the gravitational force (weight) on any mass using W = m·g.
Friction Force Calculator
Calculate friction force from the coefficient of friction and normal force using F = µN.
Static Friction Calculator
Calculate the maximum static friction force a surface can exert before an object starts to slide.
Kinetic Friction Calculator
Calculate the kinetic friction force on a sliding object using its friction coefficient and normal force.
Net Force Calculator
Add up forces along a line or combine two perpendicular components to find the resultant net force.
Tension Force Calculator
Calculate rope tension for hanging masses, vertically accelerating objects, and Atwood machines.
Centripetal Force Calculator
Calculate centripetal force for circular motion using linear or angular speed.
Inclined Plane Calculator
Calculate forces and acceleration on a block resting on a ramp with optional friction.
Drag Force Calculator
Calculate aerodynamic or hydrodynamic drag force using fluid density, velocity, drag coefficient, and area.
Spring Force Calculator
Calculate the restoring force of a spring using Hooke’s law (F = k·x) with metric or imperial units.
Equilibrium Calculator
Find the equilibrant force needed to balance up to three colinear forces and check for static equilibrium.
Work Calculator
Calculate the mechanical work done by a force over a distance at any angle.
Power Calculator
Calculate power in watts from work and time, or from force and velocity.
Energy Calculator
Calculate energy from power and time in joules, kilowatt-hours, and kilocalories.
Kinetic Energy Calculator
Calculate the kinetic energy of a moving object using its mass and velocity.
Potential Energy Calculator
Calculate gravitational or elastic potential energy using m·g·h or ½·k·x² with metric and imperial support.
Gravitational Potential Energy Calculator
Calculate gravitational potential energy (PE = m·g·h) in joules for any mass, height, and gravity.
Elastic Potential Energy Calculator
Calculate the energy stored in a compressed or stretched spring using Hooke’s law (PE = ½kx²).
Mechanical Energy Calculator
Calculate total mechanical energy, kinetic energy, and gravitational potential energy for any object.
Efficiency Calculator
Calculate mechanical or thermal efficiency as a percentage from useful output and total input energy.
Horsepower Calculator
Convert between horsepower, watts, and kilowatts instantly with accurate mechanical hp conversions.
Energy Conversion Calculator
Convert energy values between joules, kilocalories, kWh, BTU, electronvolts, and more instantly.
Wind Energy Calculator
Calculate wind turbine power output from rotor size, wind speed, air density, and power coefficient.
Momentum Calculator
Calculate linear momentum p = m·v for any mass and velocity in metric or imperial units.
Impulse Calculator
Calculate impulse from force and time, or from a change in momentum, using the impulse–momentum theorem.
Conservation of Momentum Calculator
Calculate total system momentum and the common velocity in a perfectly inelastic collision.
Elastic Collision Calculator
Find the final velocities of two objects after a 1-D elastic collision (momentum and kinetic energy conserved).
Inelastic Collision Calculator
Find the common final velocity when two objects collide and stick together in a perfectly inelastic collision.
Recoil Velocity Calculator
Calculate how fast a gun or cannon recoils when fired using conservation of momentum.
Center of Mass Calculator
Find the mass-weighted average position of up to three point masses along a line.
Angular Momentum Calculator
Calculate angular momentum using L = I·ω for rigid bodies or L = m·v·r for point masses.
Impact Force Calculator
Calculate the average force of an impact from mass, velocity change, and contact time.
Period Calculator
Calculate the period of oscillation from frequency, angular velocity, or pendulum length.
Frequency Calculator
Calculate frequency in hertz from a period in seconds or angular velocity in rad/s.
Centripetal Acceleration Calculator
Calculate centripetal acceleration from linear or angular speed and radius.
Circular Motion Calculator
Calculate angular velocity, centripetal acceleration, period, and frequency for uniform circular motion.
Rotational Kinetic Energy Calculator
Calculate the kinetic energy stored in a rotating object from its moment of inertia and angular velocity.
Rotational Dynamics Calculator
Calculate torque or angular acceleration using Newton’s rotational second law τ = I·α.
Gravity Calculator
Calculate surface gravitational field strength for planets, moons, and custom celestial bodies.
Universal Gravitation Calculator
Calculate the gravitational force between two masses using Newton’s law of universal gravitation.
Escape Velocity Calculator
Calculate the escape velocity needed to break free from a planet or star’s gravitational pull.
Orbital Velocity Calculator
Calculate the speed needed for a circular orbit around any celestial body using v = √(GM ÷ r).
Orbital Period Calculator
Calculate the orbital period of any satellite from its orbital radius and central body mass.
Planet Weight Calculator
Find your weight on any planet, moon, or the Sun by entering your mass.
Satellite Motion Calculator
Calculate orbital velocity and period for satellites around Earth, Mars, the Moon, or Jupiter.
Kepler’s Third Law Calculator
Calculate orbital periods from a semi-major axis and central mass using Kepler’s third law.
Gravitational Field Strength Calculator
Calculate gravitational field strength g = G·M ÷ r² at any distance from a massive body.
Gravitational Potential Calculator
Calculate the gravitational potential V = −GM ÷ r at any distance from a massive body.
Heat Calculator
Calculate heat energy absorbed or released by any substance using Q = m·c·ΔT.
Specific Heat Calculator
Calculate the specific heat capacity of a material from heat energy, mass, and temperature change.
Thermal Conduction Calculator
Calculate the steady-state heat-flow rate through a material using Fourier’s law of conduction.
Thermal Expansion Calculator
Calculate how much a material expands or contracts when its temperature changes using ΔL = α·L·ΔT.
Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles, or temperature with metric and imperial support.
Boyle’s Law Calculator
Calculate final pressure or volume for a gas at constant temperature using Boyle’s law (P₁V₁ = P₂V₂).
Charles’s Law Calculator
Calculate the final volume of a gas at constant pressure using Charles’s law (V₁/T₁ = V₂/T₂).
Combined Gas Law Calculator
Solve P₁V₁/T₁ = P₂V₂/T₂ for the final pressure given the initial and final gas states.
Entropy Change Calculator
Calculate entropy change ΔS = Q ÷ T for a reversible heat transfer at constant absolute temperature.
Thermal Efficiency Calculator
Calculate heat-engine efficiency (W ÷ Qin) or the Carnot maximum efficiency from reservoir temperatures.
Wave Speed Calculator
Calculate wave speed from frequency and wavelength using v = f·λ in metres per second.
Wavelength Calculator
Calculate the wavelength of any wave from its speed and frequency using λ = v ÷ f.
Wave Frequency Calculator
Calculate wave frequency from wave speed and wavelength using f = v ÷ λ.
Doppler Effect Calculator
Calculate the observed frequency of a moving source or observer using the Doppler effect formula.
Law of Reflection Calculator
Calculate the angle of reflection from the angle of incidence using θᵣ = θᵢ.
Refraction Calculator
Calculate the refracted angle of light using Snell’s law for any two media.
Snell’s Law Calculator
Calculate the refracted angle or refractive index using Snell’s law n₁·sinθ₁ = n₂·sinθ₂.
Thin Lens Calculator
Calculate image distance and magnification for a thin lens using the thin-lens equation.
Mirror Equation Calculator
Solve the mirror equation to find image distance and magnification for concave and convex mirrors.
Light Intensity Calculator
Calculate the irradiance of a point light source at any distance using the inverse-square law.
Photon Energy Calculator
Calculate the energy of a photon from its wavelength (nm) or frequency (Hz) in joules and eV.
Planck Equation Calculator
Calculate photon energy from frequency or frequency from energy using E = h·f.
Special Relativity Calculator
Calculate the Lorentz factor, time dilation, length contraction, and relativistic mass at any speed.
Mass-Energy Equivalence Calculator
Convert any mass into its equivalent rest energy using Einstein’s E = m·c².
Radioactive Decay Calculator
Calculate remaining quantity, percentage decayed, and decay constant for any radioactive material.
Markdown Editor
A fast, free online Markdown editor with live side-by-side preview.
Live Markdown Preview
Paste Markdown and see it rendered live, side by side, as you edit.
Split View Markdown Editor
A two-pane Markdown editor with the source and live preview side by side.
Fullscreen Markdown Editor
An immersive, full-window Markdown editor with live preview.
Distraction-Free Markdown Editor
A minimal, centered Markdown editor that hides everything but your text.
Markdown Playground
Experiment with Markdown using ready-made examples and a live preview.
Markdown Syntax Highlight Preview
Preview Markdown with fenced code blocks rendered in full color.
Markdown Mermaid Preview
Write Mermaid diagram code and preview the rendered diagram live.
Markdown Formatter
Tidy Markdown with consistent headings, list markers, and spacing.
Markdown Beautifier
Beautify Markdown and align tables into clean, readable source.
Markdown Cleaner
Strip trailing spaces, zero-width characters, and extra blank lines.
Markdown Minifier
Shrink Markdown by removing comments and blank lines.
Fix Broken Markdown
Repair common Markdown mistakes like unclosed fences and missing spaces.
Normalize Markdown Headings
Convert setext headings to ATX and fix heading spacing.
Normalize Markdown Lists
Unify bullet markers across a Markdown document.
Remove Empty Lines
Delete blank lines from Markdown, or collapse them to one.
Remove Duplicate Lines
Delete repeated lines from Markdown, keeping the first of each.
Markdown Escape Tool
Escape Markdown special characters so text renders literally.
Markdown Unescape Tool
Remove backslash escapes from Markdown text.
Markdown Task List Sorter
Sort Markdown task lists by completion or alphabetically.
Markdown Checklist Cleaner
Remove completed tasks, or check/uncheck a whole checklist.
Markdown Table Alignment Fixer
Re-pad and align Markdown table columns for clean source.
Markdown Word Counter
Count words in Markdown, ignoring syntax and code blocks.
Markdown Character Counter
Count characters in Markdown, with and without spaces.
Markdown Reading Time Calculator
Estimate how long a Markdown document takes to read.
Markdown Statistics
A full statistics dashboard for any Markdown document.
Markdown File Size Analyzer
Measure the byte size of Markdown content.
Markdown Line Counter
Count total and non-empty lines in Markdown.
Markdown Sentence Counter
Count sentences in Markdown prose.
Markdown Paragraph Counter
Count paragraphs in a Markdown document.
Markdown Code Block Counter
Count fenced code blocks in Markdown.
Markdown Link Counter
Count the links in a Markdown document.
Markdown Image Counter
Count the images embedded in Markdown.
Markdown Table Counter
Count GFM tables in a Markdown document.
Markdown Heading Counter
Count the headings in a Markdown document.
Markdown Task Counter
Count task-list items and see completion progress.
Markdown Completed Task Counter
Count only the completed tasks in a checklist.
Markdown Incomplete Task Counter
Count the remaining (unchecked) tasks in a checklist.
Markdown Task Progress Calculator
Calculate completion percentage of a Markdown task list.
Markdown Checklist Progress Calculator
Measure how complete a Markdown checklist is.
Markdown Outline Generator
Turn Markdown headings into a clean, indented outline.
Markdown Heading Extractor
Extract every heading from a Markdown document.
Markdown TOC Generator
Generate a linked table of contents from headings.
Markdown Anchor Generator
Create anchor links for every heading in a document.
Markdown Slug Generator
Convert titles into clean URL slugs, one per line.
Markdown Documentation Index Generator
Build a top-level index of a document’s main sections.
Markdown Duplicate Heading Finder
Find headings that repeat in a Markdown document.
Markdown Heading Numberer
Add hierarchical numbers (1, 1.1, 1.1.1) to headings.
Markdown Heading Renumberer
Fix or refresh existing heading numbers after edits.
Markdown Heading Level Shifter
Promote or demote all headings by one or two levels.
Markdown H1 Checker
Check a document has exactly one top-level H1.
Markdown Heading Hierarchy Checker
Detect skipped heading levels (e.g., H2 jumping to H4).
Markdown TOC Updater
Regenerate the table of contents between TOC markers.
Markdown TOC Remover
Strip a generated table of contents from a document.
Markdown Link Extractor
Pull every link (text and URL) out of a Markdown document.
Markdown Image Extractor
List every image (alt text and source) in a document.
Markdown Link Generator
Turn “text | url” lines into Markdown links in bulk.
Markdown Reference Link Generator
Convert inline links to tidy reference-style links.
Markdown Link Checker
Check Markdown links for empty or malformed URLs.
Markdown URL Encoder
Percent-encode the URLs inside Markdown links.
Markdown URL Decoder
Decode percent-encoded URLs inside Markdown links.
Markdown Image Generator
Create Markdown image syntax from “alt | src” lines.
Markdown Image Gallery Generator
Turn a list of image URLs into a Markdown gallery.
Markdown Figure Generator
Create figures with captions using HTML valid in Markdown.
Markdown Sitemap Generator
Turn a list of paths into a Markdown link sitemap.
Markdown Internal Links Generator
Build an in-page navigation list from your headings.
Markdown Broken Link Finder
Find Markdown links with empty or malformed URLs.
Markdown Duplicate Link Finder
Find URLs that appear more than once in a document.
Markdown Missing Alt Text Finder
Find images that are missing alt text.
Markdown Image Alt Text Checker
Review the alt text on every image at a glance.
Markdown Image Path Checker
Flag image paths with spaces, backslashes, or gaps.
Markdown Local Image Reference Checker
Separate local image paths from external image URLs.
Markdown External Link Extractor
List only the external (http/https) links in a document.
Markdown Internal Link Extractor
List only the internal links and anchors in a document.
Markdown Email Link Extractor
Pull email addresses from mailto links and text.
Markdown Phone Link Extractor
Extract phone numbers from tel: links.
Markdown Social Link Extractor
Find links to social platforms in a document.
Markdown Table Extractor
Pull all tables out of a Markdown document.
Markdown Table Generator
Build a Markdown table from simple comma-separated rows.
Markdown Table Formatter
Pad and align every table in a document for clean source.
Markdown Table Editor
Edit a table in a visual grid and get Markdown out.
Markdown Table Sorter
Sort a Markdown table by any column, ascending or descending.
Markdown Table to CSV
Convert a Markdown table to CSV.
CSV to Markdown Table
Convert CSV data into a clean Markdown table.
JSON to Markdown Table
Turn a JSON array of objects into a Markdown table.
TSV to Markdown Table
Convert tab-separated data (spreadsheet paste) to a table.
Excel to Markdown Table
Upload an Excel file and convert its first sheet to Markdown.
Markdown Table Column Counter
Count the columns in a Markdown table and list their names.
Markdown Table Row Counter
Count the data rows in a Markdown table.
Markdown Table Column Reorder
Reorder a table’s columns by specifying a new order.
Markdown Table Column Remover
Remove a column from a Markdown table by name or number.
Markdown Table Column Extractor
Extract a single column from a table as a list.
Markdown Table Filter
Keep only the rows that contain a given term.
Markdown Table Search
Find the rows in a table that match a search term.
Markdown Table Deduplicator
Remove duplicate rows from a Markdown table.
Markdown Table Transposer
Swap a table’s rows and columns.
Markdown Table to HTML Table
Convert a Markdown table to a clean HTML table.
HTML Table to Markdown Table
Convert an HTML table into a Markdown table.
PDF to Markdown
Extract the text from a PDF into Markdown, in your browser.
Markdown to PDF
Turn Markdown into a clean, printable PDF via your browser.
URL to Markdown
Convert a web page’s HTML into clean Markdown.
DOCX to Markdown
Convert a Word (.docx) document to Markdown.
Markdown to DOCX
Generate a Word (.docx) document from Markdown.
TXT to Markdown
Convert plain text to Markdown that renders verbatim.
Markdown to TXT
Strip Markdown formatting down to clean plain text.
RTF to Markdown
Recover text from Rich Text Format (RTF) into Markdown.
Markdown to RTF
Wrap Markdown text into a basic RTF document.
EPUB to Markdown
Convert an EPUB e-book into Markdown.
Markdown to EPUB
Generate an EPUB e-book from Markdown.
Markdown to Slides
Split Markdown into a slide deck separated by rules.
Markdown to Reveal.js
Generate a ready-to-open reveal.js HTML presentation.
Reveal.js to Markdown
Extract the Markdown content from a reveal.js deck.
Markdown to HTML
Convert Markdown to clean HTML you can copy.
HTML to Markdown
Convert HTML into clean, readable Markdown.
XML to Markdown
Turn an XML document into a readable Markdown outline.
Markdown to XML
Represent a Markdown document as structured XML.
YAML to Markdown
Render YAML data as a readable Markdown list.
Markdown to YAML
Convert a Markdown bullet list into YAML data.
JSON to Markdown
Render any JSON value as a readable Markdown list.
Markdown to JSON
Convert a Markdown bullet list into JSON.
Markdown to CSV
Convert a Markdown table (or list) to CSV.
Markdown to Jira Markup
Convert Markdown to Jira wiki markup.
Jira Markup to Markdown
Convert Jira wiki markup into Markdown.
Markdown to BBCode
Convert Markdown to BBCode for forums.
BBCode to Markdown
Convert forum BBCode into Markdown.
Rich Text to Markdown
Paste formatted text and get Markdown instantly.
Clipboard to Markdown
Convert your clipboard contents to Markdown with one click.
Obsidian Markdown Converter
Convert Obsidian-flavored Markdown to standard Markdown.
Markdown Code Block Generator
Wrap code in a fenced Markdown block with a language tag.
Fenced Code Block Generator
Create a fenced code block, choosing the language from a list.
Inline Code Generator
Wrap a short snippet in inline code backticks.
Markdown List Generator
Turn lines of text into a Markdown bullet list.
Markdown Checklist Generator
Turn lines into a Markdown checklist of checkboxes.
Markdown Task List Generator
Generate a GitHub-style task list from your tasks.
Markdown Nested List Generator
Build a nested Markdown list from indented lines.
Markdown Numbered List Generator
Turn lines into an ordered (numbered) Markdown list.
Markdown Quote Generator
Turn text into a Markdown blockquote.
Markdown Footnote Generator
Generate Markdown footnote definitions from your notes.
Markdown Badge Generator
Create a shields.io badge for your README.
Shields.io Badge Generator
Build a shields.io badge with a style of your choice.
Markdown Callout Generator
Create GitHub-style callouts (Note, Tip, Warning…).
Obsidian Callout Generator
Create Obsidian callouts with type, title, and folding.
Markdown Math Formatter
Wrap a LaTeX expression as inline or block math.
Markdown LaTeX Block Generator
Wrap LaTeX in a display math block ($$…$$).
Markdown Mermaid Diagram Generator
Wrap Mermaid diagram code in a Markdown code block.
Markdown Front Matter Generator
Wrap key/value lines in a YAML front matter block.
Markdown Metadata Generator
Fill in fields to generate a post with front matter.
Markdown Citation Generator
Turn source details into formatted Markdown references.
Markdown Front Matter Extractor
Pull the YAML front matter block out of a document.
Markdown Front Matter Remover
Strip the front matter block, keeping the body.
Markdown Front Matter Validator
Check that front matter is valid YAML and list its fields.
YAML Front Matter to JSON
Convert a document’s YAML front matter into JSON.
JSON Front Matter to YAML
Convert JSON metadata into a YAML front matter block.
Markdown Metadata Extractor
List all metadata fields from a document’s front matter.
Markdown Tag Extractor
Collect tags from front matter and inline #hashtags.
Markdown Keyword Extractor
Find a document’s most frequent keywords.
README Generator
Generate a complete, well-structured README.md from a few fields.
README Template Generator
Build a blank README skeleton with just the sections you want.
GitHub Profile README Generator
Create a personal GitHub profile README from a short bio and a few facts.
License Section Generator
Generate a README License section for a chosen SPDX license.
Changelog Generator
Turn a list of changes into a Keep-a-Changelog entry grouped by type.
Release Notes Generator
Write user-facing release notes from a list of highlights.
Markdown Meeting Notes Template
Generate a structured meeting-notes template with agenda and action items.
Markdown Project Plan Template
Generate a project plan template with goals, scope, milestones, and risks.
Markdown Bug Report Template
Generate a bug report template with repro steps and environment fields.
Markdown Pull Request Template
Generate a PR template with description, type-of-change, and a checklist.
Markdown Issue Template Generator
Generate a bug or feature-request issue template for your repo.
Markdown Contribution Guide Generator
Generate a CONTRIBUTING.md with setup, branch, and PR guidance.
Markdown Code of Conduct Generator
Generate a concise CODE_OF_CONDUCT.md with a reporting contact.
Markdown Security Policy Generator
Generate a SECURITY.md with supported versions and a reporting process.
Markdown Roadmap Generator
Turn status-tagged items into a roadmap grouped by Now / Next / Later.
Markdown Kanban Generator
Turn column-tagged cards into a Markdown kanban board.
Markdown Timeline Generator
Turn date/event pairs into a clean Markdown timeline.
Markdown Template Builder
Build a custom document skeleton from a title and a list of sections.
Markdown Cheatsheet
Generate a copy-ready Markdown syntax cheatsheet, with optional GFM extras.
Markdown Snippet Manager
Organize titled code snippets into a tidy Markdown document.
Markdown Notes Formatter
Tidy rough notes into clean Markdown bullets, keeping your headings.
Markdown Blog Post Formatter
Wrap a draft in blog front matter (title, author, date, tags).
Markdown Article Formatter
Format an article with front matter and a top-level title heading.
Markdown Documentation Formatter
Format docs with an optional table of contents from your headings.
Markdown API Docs Formatter
Turn a list of endpoints into formatted API reference sections.
Markdown FAQ Generator
Turn question and answer pairs into a heading-style FAQ.
Markdown FAQ Formatter
Format Q&A as bold pairs or collapsible <details> sections.
Markdown Glossary Generator
Turn term/definition pairs into a Markdown glossary, optionally sorted.
Markdown Glossary Formatter
Normalize and alphabetize an existing Markdown glossary.
Markdown Keyboard Shortcut Formatter
Turn action/keys pairs into a table, with optional <kbd> tags.
Markdown Command List Generator
Turn command/description pairs into a list or table with inline code.
Markdown Feature List Generator
Turn a list of features into styled bullets (✅, ⭐, task list, or dash).
Markdown Pros and Cons Generator
Turn tagged items into Pros and Cons sections or a side-by-side table.
Markdown Comparison Table Generator
Turn delimited rows into a GFM comparison table (first row = headers).
Markdown Pricing Table Generator
Turn plan/price/features lines into a Markdown pricing table.
Markdown Product Table Generator
Turn name/price/description lines into a Markdown product table.
Markdown Diff Checker
Compare two Markdown documents line by line and see what changed.
Compare Two Markdown Files
Compare two Markdown files with a change summary and full diff.
Markdown Merge Tool
Merge two versions of a Markdown document, keeping all lines from both.
Track Markdown Changes
Annotate changes between two versions using CriticMarkup.
Markdown Document Splitter
Split a long document into separate files at each top-level heading.
Markdown Section Splitter
Split a document into sections at H2 or H3 headings.
Markdown Section Merger
Merge sections that share the same heading into one.
Markdown Document Combiner
Combine two Markdown documents into one with optional titles and a divider.