What is a Regex Tester?
A regex tester allows you to test regular expressions (patterns) against text to find matches. It is widely used in programming, validation, and data extraction.
How to Use the Regex Tester
- Enter your regex pattern
- Add optional flags like g (global) or i (case insensitive)
- Paste your test string
- Click "Test" to see matches
Common Regex Examples
\d+→ matches numbers[a-z]+→ matches lowercase text\w+@\w+\.\w+→ matches emails
FAQ
Is this regex tester free?
Yes, completely free.
What flags can I use?
Common flags include g (global), i (case-insensitive), and m (multiline).
Why use regex?
Regex helps automate text matching, validation, and extraction tasks.