What is the Regex Tester?
A regex tester lets you try JavaScript regular expressions against sample text and see every match and capture group.
How to use it
- Type a pattern and flags.
- Paste test text.
- Review the list of matches.
Features
- Live results
- Flags g, i, m, s, u
- Capture groups listed
The Regex Tester is part of the free ProgramGeeks.net toolbox and runs entirely in your browser.
FAQ
Is my data sent to a server?
No. Every tool on ProgramGeeks.net runs fully in your browser, so your input never leaves your device.
Which regex flavor is used?
The JavaScript (ECMAScript) engine built into your browser.