Regex Tester

Test regular expressions with live matching.

Regex Tester

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About Regex Tester

Test regular expressions with live matching. Enter a regex pattern and test string to see matches highlighted in real-time. Includes common regex patterns for quick reference.

Key Features

  • Live matching
  • Match highlighting
  • Common pattern templates
  • Match count

How to use Regex Tester

  1. Enter your regex pattern.
  2. Enter the test string.
  3. See matches highlighted in real-time.

Privacy & Security

All processing happens directly in your browser. Your data never leaves your device and is never uploaded to any server. We have no access to the files you process or the data you enter. This ensures complete privacy and security.

Frequently Asked Questions

What is regex?

Regular expressions (regex) are patterns used to match text. They're used in search, validation, and text processing.

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