Markdown Heading Outline
Extract ATX headings outside fenced code blocks.
Runs entirely in your browser — your selected files are not uploaded by this tool. Device-provided speech voices may use online services.
About this free markdown heading outline tool
Extract ATX headings outside fenced code blocks. Text utilities make repeatable edits to drafts and lists without asking a model to rewrite the meaning. Keep a source copy when sorting, extracting or transforming data. The right operation depends on whether spaces, line breaks, case and punctuation are meaningful in your destination; review a short representative sample first.
A practical example
A concrete example uses text: # Guide ## Details. The result is H1: Guide H2: Details.
Before you rely on the result
Processes pasted input on your device, not a live website. Keep the original and review the output. Up to 200,000 characters. Simple Markdown and parentheses tasks are not full document parsers; tabs use four fixed spaces.
Frequently asked questions
Is the markdown heading outline free to use?
Yes. The Markdown Heading Outline is free, needs no account and has no usage limit beyond what your device can handle.
Are my files or numbers uploaded anywhere?
No. The Markdown Heading Outline runs in your browser, so the values and files you enter stay on your device. Close the tab and nothing is kept.
What does the markdown heading outline do?
Extract ATX headings outside fenced code blocks. Text utilities make repeatable edits to drafts and lists without asking a model to rewrite the meaning. Keep a source copy when sorting, extracting or transforming data. The right operation depends on whether spaces, line breaks, case and punctuation are meaningful in your destination; review a short representative sample first.
When should I double-check the result?
Processes pasted input on your device, not a live website. Keep the original and review the output. Up to 200,000 characters. Simple Markdown and parentheses tasks are not full document parsers; tabs use four fixed spaces.
Can I share my result?
Yes. Use Copy result or Download, and on calculator-style tools use Copy share link to send someone a link that opens with the same inputs filled in.