Regex Visualizer & Test Bench

Analyze regular expressions interactively, inspect syntax trees, test matches in real-time, and generate production code across JavaScript, Python, and PHP.

Regular Expression Valid Regex

Pattern & Flags

/ /

Presets

Test String

Live Matching Highlight 0 matches found

Highlighted Result View

Interactive Syntax Tree Breakdown

Parsing tree...

Capture Groups Breakdown

Group #	Matched Content	Index
No matches or capture groups available.

Code Generator

const regex = /([A-Z][a-z]+)\s+(\d{4})/g;
const testStr = `...`;
const matches = [...testStr.matchAll(regex)];
console.log(matches);