regex101

Online regex tester and debugger with explanations for multiple flavors

regex101 is an online regular expression tester that explains each part of a pattern, highlights matches, and supports PCRE, JavaScript, Python, Go, Java, .NET, and Rust flavors, with a community pattern library.

Key features

Pattern explanation and match highlighting
Multiple regex flavors
Substitution and unit tests
Community pattern library

Try it on DevTools Daily

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