Regex Tester

Matches update as you type; invalid patterns show an error here.

Flags
Waiting for input
Enter a pattern and sample text to see highlights and the match list.

Examples

Email Match
/[\w.-]+@[\w.-]+\.\w+/g
URL Match
/https?:\/\/[^\s]+/g
Phone Number Match
/\d{3}-\d{3,4}-\d{4}/g
Date Match
/\d{4}-\d{2}-\d{2}/g
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Built for quick debugging

Developer tools avoid unnecessary setup and keep common snippets, tokens, and test data in your browser where possible.

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Quick workflow

  1. Paste the value, snippet, command, or sample data.
  2. Run the parser, generator, tester, or converter.
  3. Copy the result and continue with the suggested next tool.
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Useful tip

Chain small tools together: decode, inspect, format, compare, and generate types from the same data.

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