Regex Tester & Visualizer | Tool Lockers

A fast browser-based regex validator for debugging expression logic, flags, and captured groups in real time.

The tester compiles the user pattern in the browser using JavaScript’s native RegExp engine for fast visual feedback.

Flag toggles change matching behavior instantly, helping developers compare g, i, m, and s semantics without a manual script.

Each match includes the exact text plus capture group values so debugging complex patterns is faster and clearer.

The pattern suggestions speed up common validation tasks like email extraction, URL discovery, and date matching.