ToolHavenHub
Regex Lab
ToolHavenHub · Regex Lab

Test yourregex live.

Write a pattern and see matches highlighted instantly, with a live match count. Supports flags like g, i, m and s.

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The Tool

Regex tester

Free Online Regex Tester

Test and debug regular expressions with instant feedback. Every match in your test string is highlighted as you type, along with a live count, so you can perfect your pattern quickly.

How to use

  1. Enter your regex pattern and flags.
  2. Paste the text you want to test.
  3. See matches highlighted and counted live.

Everything runs locally in your browser — free, fast and privacy-first. No uploads, no signup.