Heading Structure Analyzer
Extract H1-H6 from HTML, view the heading outline as a tree, count per-level, and detect SEO issues: multiple H1s, missing H1, skipped levels, long headings, and empty headings. Export as markdown. 100% client-side.
Extract H1-H6 from HTML, view the heading outline as a tree, count per-level, and detect SEO issues: multiple H1s, missing H1, skipped levels, long headings, and empty headings. Export as markdown. 100% client-side. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.