NNWS Tools

Regex Tester

Test patterns with live match highlighting.

Runs on your device
Pattern
//g
Test string
Built by nihmathullah.com — need a tool like this for your business?
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About Regex Tester

Regex Tester is a free, private developers tool that lets you test patterns with live match highlighting. Like every tool on NWS Tools, it runs entirely in your browser — nothing is uploaded, there are no accounts, and there's no tracking. Just open it and go.

Frequently asked questions

Is Regex Tester free to use?
Yes. Regex Tester is completely free, with no account, sign-up or limits.
Are my files or data uploaded anywhere?
No. Regex Tester runs entirely in your browser. Your files, text and numbers are processed on your own device and are never uploaded to a server.
Does Regex Tester work offline?
Once the page has loaded, most tools keep working with no internet connection. NWS Tools is a Progressive Web App you can even install.
Do I need to install any software?
No installation is required — Regex Tester works instantly in any modern browser on desktop or mobile.