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Heading Outline
Paste HTML or Markdown and see the document outline (H1–H6). Catches multiple H1s and skipped levels for SEO and accessibility.
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Try toolFrequently Asked Questions
You paste HTML or Markdown and it extracts all headings (H1–H6) into a visual outline. It flags issues like multiple H1s or skipped levels (e.g. H2 then H4), which matter for SEO and screen readers.
Content editors, SEOs, and developers checking page structure before publish. A clear heading hierarchy helps search engines and assistive tech understand your page.
Yes. Paste Markdown with # ## ### and the tool treats them as H1, H2, H3. You can mix HTML and Markdown in the same paste.
No. Parsing runs entirely in your browser. Nothing is sent to any server.
Going from H2 to H4 skips H3. Screen readers and some SEO checks expect a logical order (H1 → H2 → H3). The tool highlights where a level is skipped so you can fix it.
