vjyas.online

Regex Tester

Test regular expressions with live match highlighting. Supports flags and capture groups. Runs in your browser.

100% private

Live demo
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Pattern + text
 
Matches
 

Auto-playing walkthrough — paste input, click test, see the result

Flags
Highlighted Matches
Enter pattern and text

How to use Regex Tester

  1. Enter your regular expression pattern.
  2. Select flags (global, case-insensitive, multiline, etc.).
  3. Type test strings and see matches highlighted in real time.

Frequently Asked Questions

Is there a regex timeout?
Yes. Patterns that could cause catastrophic backtracking are aborted after a short timeout to protect your browser.