← All tools
Regex Tester
Test and debug regular expressions with live matches and highlights.
100% Private — Your text never leaves your browser. No data is sent to our servers.
About this tool
Test and debug regular expressions with live matches and highlights.
Common use cases
- Convert text quickly with copy-ready results
- Use the output in documents, scripts, or workflows
- Work locally in your browser without installing software
How to use
- Paste your input (JSON, regex, text, etc.).
- Use the tool to format, validate, or test.
- Copy or download the result.
Runs in your browser. No text is uploaded to servers.