toolkit

Regex Tester & Debugger

Test and debug regular expressions in real time with match highlighting, capture group visualization, and a quick-reference cheat sheet.

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Find & Replace


Common Patterns


Regex Cheat Sheet


About

  • Real-time regex matching with syntax highlighting
  • Capture group and named group visualization
  • Support for global, case-insensitive, and multiline flags
  • Match replacement with substitution preview
  • Built-in regex cheat sheet and common patterns library

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toolkit — A collection of simple, client-side utilities for everyday tasks. Built with SvelteKit and Pico CSS.