Regex Tester

Regular expressions

A regular expression is a compact syntax used to match, extract, and validate text. It is widely used in form validation, search logic, and parsing workflows.

Pattern, flags, and input

Provide a pattern, optional flags, and an input text block. The utility returns all matches with their index positions and captured groups.

Practical use

Use this tool to verify expressions before adding them to production code, test scripts, and validation pipelines.