DEVELOPER UTILITIES

Regex Tester

Regex Tester runs locally in your browser to help format, validate, convert, or inspect developer data without sending it to a remote service.

Regular expression testerMatches update while you type. JavaScript RegExp syntax is supported.

MatchesEnter an expression and test text.

Your test text with highlighted matches will appear here.

About Regex Tester

Regex Tester gives pattern matching rules and test strings a dedicated treatment. Its starting material is the relevant code, expression, identifier, or value; its job is to lets you test the relevant browser, device, or input capability; and its finished result is an inspected, generated, or validated result. This combination is valuable for development checks and debugging workflows.

Pattern behaviour is evaluated against the exact expression and sample provided. Taken together, these details make Regex Tester suitable for development checks and debugging workflows.

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