Regex Tester
Run JavaScript regular expressions against sample text with match details.
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What is Regex Tester?
Regex Tester runs JavaScript regular expressions against sample text and exposes every match and capture.
How to use Regex Tester
- 01
Enter a pattern and the text you want to search.
- 02
Enable the flags needed for global, case-insensitive or multiline matching.
- 03
Review matched text, positions and capture groups before using the pattern.
Regex Tester FAQ
Why does a pattern work elsewhere but fail here?
Another language may support different tokens or flags. Adapt the expression to JavaScript regex syntax.
Is Regex Tester private to use?
Yes. The data is processed by code running in your browser and is not uploaded to Toolnera.