# build, test, and debug regex

> Online regex tester and debugger with real-time match highlighting, detailed explanations, substitutions, unit tests, benchmarking, and code generation. Supports PCRE2, JavaScript, Python, Go, Java, .NET, Rust, POSIX…

- **Category:** Code
- **Kind:** Tool
- **Host:** regex101.com
- **Destination:** https://regex101.com/
- **Date added:** 2019

This page is part of [Ref Point](https://ref-p.com/index.md), Chris Beltran’s curated library.