Regex Tester
Test your regular expressions (Regex) in real-time. Supports match highlighting.
Matches: 0
Frequently asked questions
Which regex flavor is used?
The JavaScript (ECMAScript) flavor used in browsers and Node.js. Matches are highlighted directly in the text.
How does this tool work?
This tool helps you create and debug regular expressions in real-time.
Enter your regular expression in the top field and your test text below it. The tool automatically highlights all matches and provides information about hits or syntax errors in the regex. You can toggle various flags (like "global" or "ignore case").
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.