Test and debug regular expressions with real-time matching, syntax highlighting, and capture group visualization. 100% private - all processing in your browser.
Test Regex NowYour data is processed entirely in your browser. Nothing is uploaded to any server - your text and patterns stay on your device.
See matches instantly as you type. No need to click a button - results update automatically with every keystroke.
Colored match groups make it easy to visualize what your regex is capturing. Different colors for different groups.
View all captured values in a clear, organized format. See exactly what each group in your pattern is matching.
No signup, no limits, no restrictions. Test as many patterns as you need, forever free.
Use on any device - desktop, tablet, or phone. No software installation required.
Type or paste your regular expression pattern. Select flags like global, case-insensitive, or multiline.
Enter the text you want to test against. Paste sample data or type directly into the test area.
Matches are highlighted instantly. View capture groups, match positions, and detailed breakdown of results.
No. ZippyEdit processes everything locally in your web browser using JavaScript. Your text and regex patterns never leave your device, making it the most private regex testing tool available.
The tester uses JavaScript's native RegExp engine, which follows ECMAScript standards. This is compatible with most modern programming languages and environments.
Yes! Enable the multiline flag (m) to have ^ and $ match the start and end of each line. You can also use the dotall flag (s) to make . match newlines.
Yes! Once the page loads, the regex tester works without an internet connection since all processing is done locally in your browser.
No signup required. Start testing instantly.
Open Regex Tester