Paste a regex for a plain-English breakdown, or describe what you want to match and get a regex back. Powered by Claude.
Paste any regular expression and the tool returns a token-by-token breakdown in plain English, covering every group, anchor, quantifier, and character class, plus example matches and non-matches.
The regex tester runs your pattern against sample text and highlights matches in real time. The explainer adds AI commentary so you can understand or learn the pattern, and can also generate a new regex from an English description.
Yes. Each IP address is limited to 10 requests per 15 minute window. The limit is in-memory per server instance and resets automatically.
Claude by Anthropic. Responses stream token by token so you see the answer as it is generated.
No. Input is sent to the AI provider for the request only. Nothing is logged or persisted on our side.

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