Markdown Anchor Checker
Find Markdown links to headings that no longer exist. Runs locally and returns a reviewable report.
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Input is limited to 200000 characters. Results are computed locally and exported as JSON. Up to 200,000 characters. Review the settings before running.
Your result
How to use Markdown Anchor Checker
- Paste the Markdown document.
- Run the local check.
- Review broken fragments and download the report.
Heading slugs vary
The checker uses a common slug rule; compare the result with your renderer when punctuation or duplicate headings matter.