Regex Tester

Test regular expressions against sample text with real-time highlighting of matches. See capture groups, get explanations of what your pattern does, and debug why it's not matching what you expect. Regex is hard enough without doing it blind.

1. 1Enter your regex pattern in the pattern field
2. 2Paste sample text in the test area
3. 3Matches highlight in real-time as you type
4. 4Check the explanation panel to understand each part of your pattern
5. 5Toggle flags like global, case-insensitive, and multiline

Writing regex from memory and hoping it works is a recipe for bugs. Testing against real data with visual feedback catches edge cases and saves you from deploying patterns that match too much or too little.