Test regular expressions against text.
Regex Tester tests regular expressions against sample text with match highlighting. See also: regex-generator or find-replace.
To use Regex Tester, first enter your regex pattern in the Pattern field. Then, set flags (g, i, m, s, etc.) in the Flags field. After that, paste or type the test string. The result appears instantly in your browser.
Regex Tester tests regular expressions against sample text with match highlighting. It runs entirely in your browser, with no sign-up and no file uploads.
First, enter your regex pattern in the Pattern field. Then, set flags (g, i, m, s, etc.) in the Flags field. Paste or type the test string.
Yes - Regex Tester is completely free and requires no account. Everything runs locally in your browser, so your code and data never leave your device.