Developer tools
Encode, decode, format, and secure.
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.