Regex Tester

260606 · Test regular expressions against real text. See matches highlighted instantly.

What it does

Enter a regex pattern and test it against any text. Matches highlight in real time. Shows all match groups, counts, and positions.

How to use

  1. Enter your regex pattern in the top field
  2. Paste test text below
  3. Matches highlight instantly as you type

Notes

  • Supports flags: g, i, m, s
  • Shows capture groups separately
  • Works offline