Developer and document tools
Regex
Test JavaScript regular expressions as you type.
What it is
Type a pattern and a test string to see every match highlighted, with a table of numbered and named groups, replace and split previews, a cheat sheet and common patterns.
Why use it
- See exactly what a pattern matches
- Debug capture groups quickly
- Start from a known-good pattern
Key features
- Live match highlighting
- Capture group table
- Replace and split previews
- Cheat sheet and pattern library
Before you start
- Account
- No account needed.
- Pricing
- No charge.
- AI
- No AI.
- Privacy
- Usage and what you enter are recorded, as its privacy page explains.
