How to check markdown links for validity
- Step 1Drop the doc — Upload the Markdown file with links to validate.
- Step 2Validate — Click Run — links are checked, results report generated.
- Step 3Fix broken links — Address any flagged links before publishing.
Frequently asked questions
Does it detect HTTP 404s?+
Browser CORS prevents reading 404 status — the tool detects DNS/network failures only. For 404 detection, use a dedicated link-checker.
What about anchor links?+
In-document anchors (`#section`) are validated against existing headings.
Will it follow redirects?+
Browser fetch follows redirects automatically. If the final destination resolves, the link passes.
Privacy first
All Markdown processing runs locally in your browser using JavaScript. No file is ever uploaded to JAD Apps servers — only metadata counters are saved for signed-in dashboard stats.