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Regex101

Regex101

Regex101

FREE

Online regex tester and debugger with explanations.

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About

Regex101 is a powerful regular expression tester that provides real-time matching, detailed explanations, and a quick reference. It supports PCRE, Python, JavaScript, and Go regex flavors. Regex101 is widely used by developers to learn, test, and debug regex patterns.

Pricing

Pricing Type

Free

Free tier available

Last checked: February 17, 2026

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Key Facts

Categories

Platforms

Web

Company

Regex101.com

Founded

Founded in 2014

Industry

Development

Country

Global

Language

English

Quick Info

Website