Regex tester
Test JavaScript regular expressions in an isolated worker.
01 / Your input
02 / Your result
Your result will appear here.
How to use this tool
- Enter your own values, or select Load example to restore the demonstration inputs.
- Review the input text before selecting Run tool.
- Inspect the result, then copy it or download the generated file. Changing inputs clears the previous result.
Processing happens in this browser. Inputs are not uploaded or saved by the tool. Reset clears the result and restores the default settings.
Example and expected result
With g, the pattern matches hello and orbit at positions 0 and 10.
Limits and interpretation
JavaScript syntax only. Work is terminated after one second. Results are limited to 1,000 matches.