Test regular expressions against text.
Regex Tester tests regular expressions against sample text with match highlighting. See also: regex-generator or find-replace.
Enter or paste your code or data into the input area, configure any options, and click the process button. The tool parses, transforms, or validates your input using built-in algorithms and displays the result instantly. You can copy the output or download it as a file.
It processes your code or data in the browser, providing instant formatting, validation, or conversion results.
No, all processing is done client-side. Your code stays on your device.
Yes, the tool is fully responsive and works on smartphones and tablets.