Regex Debugger

Test and debug regular expressions with live pattern matching and multi-language support

Examples:

Input

Regular Expression

Flags

Language Flavor

Pattern Visualization (hover to see explanations)

\d+

Code Snippet for JavaScript (ECMAScript)

const regex = /\d+/gm;
const matches = testString.match(regex);

JavaScript regex using RegExp constructor

Test String

Matches (2)

Hover over highlights for details

Hello 123 world 456