Markdown
Markdown Heading Renumberer
Fix or refresh existing heading numbers after edits.
How it works
- 1Paste Markdown with stale heading numbers.
- 2Old numbers are removed and fresh ones applied.
- 3Copy the renumbered document.
Use cases
- Fix numbers after inserting a section.
- Resequence a reordered document.
- Clean up manual numbering.
Frequently asked questions
What if my numbers are wrong?
The tool strips any existing leading numbers and recalculates them from scratch.
How is this different from the numberer?
It’s the same engine; use it when headings already have numbers that need correcting.
Is it private?
Yes. Everything runs in your browser — nothing is uploaded.
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