regex101: build, test, and debug regex

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

Overzicht

Toegevoegd op

17 maart 2026

Vak & domein

computer-science-fundamentals · compiler-design

Schooljaar

Klas 1 (brugklas)–Klas 4

Paginatype

Tool

Trefwoorden

regexregex testerregular expressiondebuggerpcrephpgolangjavajavascriptpython.netc#rust

Inleiding

Regex101 Overview

  • Core Functionality: An online tool designed for building, testing, and debugging regular expressions.
  • Key Features:
    • Real-time syntax highlighting.
    • Detailed explanations of regex patterns.
    • Integrated cheat sheet for quick reference.
  • Supported Languages:
    • PHP (PCRE)
    • Python
    • Go
    • JavaScript
    • Java
    • C#/.NET
    • Rust

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