Test and debug regular expressions with real-time matching and highlighting.
Compose pattern and flags, then test against sample content.
Highlighted output and captured groups with execution timing.
Test and debug regular expressions in real time. Paste your regex and input, and see matching results instantly. Supports standard JavaScript regex syntax. Useful for developers validating patterns or learning regex behavior through interactive examples.
This tool runs entirely in your browser. Your files and input data are not uploaded by Toolhive.