Regex Tester

Test and debug regular expressions with real-time matching, detailed explanations, and code generation for multiple programming languages.

Regular Expression:

Test String:

Options:

Show matches Show capture groups Show positions Auto test

Matches:

No matches found

Highlighted Text:

Enter a regex and test string to see highlights

Capture Groups:

No capture groups

Code Generation:

// JavaScript example
const regex = /your-pattern/flags;
const matches = text.match(regex);

Matches Found

Capture Groups

Pattern Length

0ms

Test Time

Test your regex patterns instantly with real-time feedback and visual highlighting of matches in the test string.

Generate ready-to-use code snippets for JavaScript, Python, PHP, Java, C#, and Ruby with your regex pattern.

Clear error messages and validation for invalid regex patterns with suggestions for fixes and best practices.