# Regex101

- slug: `regex101`
- url: https://regex101.com/
- tagline: Regex tester with explanation, substitution, and unit tests.
- categories: devtools
- locales: en
- founded_case: false
- ownership_status: unclaimed
- editorial_status: unreviewed
- verification_status (legacy): unverified
- link_rel (ops): nofollow
- created_at: 2026-09-13
- updated_at: 2026-09-13

## Description

Interactive regular-expression debugger for PCRE, JavaScript, Python, Go, Java, and .NET flavors. Shows a plain-language explanation of the pattern. Free to use in the browser.


## Links for agents

- HTML: /p/regex101/
- Markdown: /p/regex101.md
- JSON: /api/v1/listings/regex101.json

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