Magic Regex Generator

Magic Regex Generator targets the everyday friction of writing regex: you know what you want to match, but translating that into an escaped, correctly grouped pattern is slow and error-prone. The tool wraps an AI coding agent that accepts a plain description, generates a candidate pattern, executes it against sample input in a secure sandbox, and evaluates the output itself. If the results are wrong, the agent revises and re-tests rather than returning the first draft.

Alongside the agent there is a Regex Copilot chat panel with ready-made suggestions such as matching .edu emails, extracting phone numbers, validating http/https URLs or finding MM/DD/YYYY dates. A full Regex Studio gives developers a manual playground: pattern and flags fields, Match and Capture modes, runtime switching between JavaScript (ES6+) and Python 3, multi-line test strings, and a results pane. Generated and hand-written patterns can be copied as code snippets, and a library of common snippets covers emails, HTML tags and dd-MM-YYYY dates.

Because the generated patterns are produced automatically, the tool's own FAQ notes they may not be suitable for highly sensitive applications — reviewing the output remains a good idea. The service is free to use and is presented as a single-page utility rather than a subscription product.