Regex Tester
Test regular expressions against input text with real-time matching.
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How to use
- 1Enter your regular expression in the search box.
- 2Add flags (like g, i, m) if needed.
- 3See instant highlights of matches in your test string.
Frequently Asked Questions
Is my data secure?
Yes. This tool runs entirely in your browser. Your data is never sent to our servers or stored anywhere.
Can I use this for large files?
Most browser-based processing can handle up to several megabytes. For extremely large files, we recommend using dedicated CLI tools or Web-based software.