Regex Tester & Matcher
Test regular expressions against your text in real time. Matches highlight in green. Native JavaScript RegExp.
Your files are 100% safe. Processing is done in your browser; nothing is uploaded to any server.
How to use this tool & why it helps
Enter a regex pattern and optional flags (e.g. g for global, i for case-insensitive). Type or paste your text below. Matches are highlighted in green as you type.
Uses the browser's native RegExp engine. No data is sent to any server. Essential for developers and data extraction workflows.