Regex Tester
Test your regular expressions (Regex) in real-time. Supports match highlighting.
Matches: 0
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?
100% Client-Side: Your data never leaves your browser.
All calculations, conversions, encodings, and file processing of this tool are executed exclusively locally via JavaScript on your client device. No inputs, passwords, cryptographic keys, texts, or uploaded files are ever sent to our servers or third parties. Once the page is loaded, the tool remains completely functional even offline.