Regex Tester
Enter a pattern and flags, then type your test string to see matches highlighted live. Everything runs in your browser.
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Questions fréquentes
- How do I test a regex?
- Type your pattern and flags (like g, i, m), then paste a test string. Matches are highlighted live and counted as you type.
- Which regex flavor is used?
- It uses the JavaScript (ECMAScript) regular expression engine built into your browser.
- Is my text uploaded?
- No. Matching runs entirely in your browser, so your pattern and text never leave your device.