Regex Tester
Test JavaScript regular expressions with flags, match details, and capture groups locally.
Result
Run a JavaScript regular expression to see matches.
How to use
- Enter a JavaScript pattern without slash delimiters and choose flags.
- Enter test text, then test the expression locally.
- Inspect matches and captures, copy the result, or clear the tool.
About this tool
Runs native JavaScript regular expressions in a bounded local worker. Execution that exceeds the safety budget is stopped.