Deterministic text rules are applied while preserving Unicode, line, and word boundaries.
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Text & NLP
Markdown Link Integrity Checker
Parses inline and reference links, reporting undefined identifiers, javascript/data schemes, and duplicate definitions. It does not claim that remote URLs are reachable.
✓ Free✓ No account✓ In-browser
QUICK ANSWER
What does this tool do?
Find broken references, unsafe schemes, and duplicate definitions in Markdown without network requests.
APPLICATION AND DECISION GUIDE
Markdown Link Integrity Checker: method and usage
Parses inline and reference links, reporting undefined identifiers, javascript/data schemes, and duplicate definitions. It does not claim that remote URLs are reachable.
plain text to edit or compare while preserving its purpose and target language Confirm the shape first with a small example containing no personal data.
edited text, a change summary, and measurable language or structure indicators
Practical steps
- Paste the Markdown source.
- Run the local link review.
- Verify remote destinations separately in the publishing environment.
a before-and-after comparison of meaning-changing sentences, proper names, numbers, punctuation, and multilingual characters
Language, meaning, and context still require final human review.
Suitable use cases
- README release review — Find broken references, unsafe schemes, and duplicate definitions in Markdown without network requests.
- Documentation migration review — Find broken references, unsafe schemes, and duplicate definitions in Markdown without network requests.
- Safe-link pre-scan — Find broken references, unsafe schemes, and duplicate definitions in Markdown without network requests.
LEARN THE WORKFLOW
Guides for this tool
A Release Review for Accessible Markdown and HTML Tables
Test link syntax, safe targets, table captions, and screen-reader relationships in one release gate.
Read guide →An Evidence-Led Checklist for Accessible Content Releases
Verify table semantics, color contrast, link integrity, and social previews in one release gate.
Read guide →ABOUT THIS TOOL
Frequently asked questions
What input does Markdown Link Integrity Checker accept?+
plain text to edit or compare while preserving its purpose and target language Paste the Markdown source.
What does Markdown Link Integrity Checker return?+
edited text, a change summary, and measurable language or structure indicators Deterministic text rules are applied while preserving Unicode, line, and word boundaries.
How should I validate Markdown Link Integrity Checker output?+
a before-and-after comparison of meaning-changing sentences, proper names, numbers, punctuation, and multilingual characters
Does Markdown Link Integrity Checker send or store input on a server?+
Tool input is processed in the active tab. Saving to the Workstation or transferring to another tool is a separate choice. Consider browser extensions and shared devices separately; the privacy page explains advertising and network connections.