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Text utility
Regex Playground
Test patterns with live matches and groups. Private by default, with all processing done in your browser.
⌘ / Ctrl + Enter to test
Pattern library:
Matched text
✓ Verified example: 2 expected matchesTesting pattern…
error: invalid token info: request completed error: retrying request
Regression test cases
Check a pattern against several examples
One case per line: Name | expected match count | test text.
✓ Valid error1 found · expected 1
✓ No error0 found · expected 0
How to use this tool
A quick regex playground workflow
Test patterns with live matches and groups. Paste or enter your data, use the available controls, then copy or download the result when it is ready.
- Everything runs in your browser, so your working data stays on your device.
- No account, installation, or upload is needed.
- Use the related utilities below when you need the next step in your workflow.