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YAML Validator JavaScript Validator Regex Tester JSON Path Evaluator XPath Evaluator HTML Validator Redirection Checker Link Checker JSONPath Finder View all →

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Base64 Encoder Base64 Decoder JWT Decoder HAR Sanitizer HTML Encoder / Decoder JavaScript String Escaper / Unescaper XML String Escaper / Unescaper SVG Viewer View all →

AI & LLM Tools

LLM Token Counter Context Window Calculator Prompt Diff Checker LLM JSON Schema Validator Function Calling Schema Generator Prompt Template Linter Embedding Cosine Similarity Calculator Prompt Minifier View all →

Link Checker

Bulk-check links extracted from pasted HTML or a plain URL list. Choose a mode, then click Check All Links. CORS may hide precise status codes - results disclose that limitation rather than inventing status codes.

Handy for reviewing docs pages before publishing. A single broken link is one red row, never a global failure. This tool does not auto-run while you type.

Cross-origin link checks are limited by browser CORS. Expect Reachable/Blocked labels when exact HTTP status cannot be read.

Paste or type your content here…

Paste HTML or a list of URLs, then click Check All Links.

Frequently Asked Questions

Relative links?

Only absolute http(s) URLs are checked in v1.

Will this DDOS a site?

No - checks are sequential from your browser. Use Paste list of URLs for a plain list.

Link Checker

Frequently Asked Questions

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