Web Development · Local processing · Available
Test Regular Expressions
Check which fragments match a JavaScript pattern before incorporating it into a text process.
Processed in your browser · No registration required
WHAT YOU CAN DO
Test Regular Expressions: what you need to know
Check which fragments match a JavaScript pattern before incorporating it into a text process.
Enter the pattern without delimiters, flags, and text; execute and review positions. Supports flags g, i, m, s, and u, patterns up to 200 characters, and text up to 5000 characters. Use simple patterns to avoid costly searches.
STEP BY STEP
How to use this tool
- Open the regular expression tester in Prisma Space.
- Enter the pattern without delimiters, flags, and text; execute and review positions.
- Review the result before copying, downloading, or using it.
FREQUENTLY ASKED QUESTIONS
Common questions
Is it compatible with any regex engine?
No. It uses the browser's JavaScript regular expression implementation.
What should I review before using the result?
Supports flags g, i, m, s, and u, patterns up to 200 characters, and text up to 5000 characters. Use simple patterns to avoid costly searches.