Regex Workbench

A live regular expression playground for developers. Write your pattern, paste your test string, and see matches highlighted in real time — no guesswork, no browser console.

Key Features

• Live Match Highlighting: Matches are highlighted instantly as you type, with each group styled distinctly.
• Capture Group Inspector: Every named and unnamed group is broken out into a clean table with its index and captured value.
• Flag Controls: Toggle g, i, m, s flags with a single click and see the effect immediately.
• Match Summary: See total match count, first match position, and full match details at a glance.
• Code Snippets: Copy a ready-to-use regex snippet for JavaScript, Python, or Go based on your current pattern and flags.

[!TIP] Hover over a highlighted match in the test string to see which capture groups it belongs to. Use the “Sample” button to load a practical example if you need a starting point.