Regex Tester - Online Match / Replace
Free regex tester. Test regex matching, extract groups and replace locally in real time, highlighting all hits. 100% local, no upload.
About 编码 / 开发
Test regex match/replace locally, highlight hits. This tool runs entirely in your browser locally — no file upload, your privacy is protected, and speed is unaffected by network.
FAQ
Will my files be uploaded?
No. All processing happens locally in your browser; files never leave your device.
Which formats / scenarios are supported?
regex tester, regex test, online regex, regular expression, regex match, regex replace and more can be done on this page.
Do I need an internet connection?
After the page loads, conversion/computation runs locally and works offline (except features relying on external fonts/libraries).