Regex Tester
Developer Tools
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About This Tool
Free, private, serverless regex tester. Test regular expressions with live matching and highlighting. No data leaves your browser.
How to Use
- Enter a regex pattern.
- Enter test text.
- See highlighted matches and groups.
Frequently Asked Questions
What flags are supported?
Global (g), case-insensitive (i), multiline (m), and dotAll (s).
What are the use cases for this tool?
Content creation, web development, data processing, and everyday productivity tasks.
Does it work offline?
Yes. Once the page loads, it works entirely without an internet connection.
Is my data private?
Absolutely. Everything runs 100% in your browser. No data is sent to any server.