Regex Tester
Test and debug regular expressions with live match highlighting, capture groups, and code snippets for JavaScript, Python, Java, and Go.
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Regex Pattern
Test String
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About this tool
Live Testing
Matches update in real time as you type — no button needed.
Pattern Library
12 common patterns for email, URL, phone, date, and more.
Multi-Language Snippets
Export patterns as ready-to-use code for JavaScript, Python, Java, and Go.
Export & Download
Download match results as JSON or copy code snippets to clipboard.