Business Profile
regex101 provides a web-based environment to build, test, and debug regular expressions with real-time explanations and integrated tooling.
Developers, testers, students, and learners who write or validate regular expressions.
Real-time automatic explanations as you type, combined with multi-language regex flavors and an integrated toolset (editor, debugger, code generator, quiz, library).
Immediate value as you type; explanations and match data appear in real time
A web-based regular expression tester and debugger that provides syntax highlighting, explanations, and a flavor-aware cheat sheet for languages including PHP/PCRE, Python, Go, JavaScript, Java, Java/.NET, and Rust.
Developers, QA engineers, learners and students who work with regular expressions
Regex101 combines an interactive editor and debugger with automatic regex explanations and multi-language flavor support in one platform, plus access to patterns, quizzes, and a community library.
Web-based tool that requires JavaScript to run; supports flavors PCRE2 (PHP >=7.3), PCRE (PHP <7.3), ECMAScript (JavaScript), Python, Golang, Java 8, .NET 7.0 (C#), Rust
No pricing information provided on the pages; there is a donate/sponsor option, and sponsors are referenced on the site.
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