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Regex Tester

Test regular expressions with live match highlighting and groups.

Works offlineNo upload

Regular expression

Flags:

Presets

Test text

Safety: Matching runs in your browser with a hard cap of 1,000 matches to prevent freezes. Avoid catastrophic backtracking patterns like (a+)+$ against long inputs.

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Privacy: This tool processes your files locally in your browser whenever technically possible. Your files are not uploaded to linkiit servers. Always verify output for official or legal use.

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