Regex Tester
Test regular expressions against text and inspect the matching results.
Matches
0 matchesRegex matches will appear here.
About Regex Tester
Test regular expressions against sample text and quickly inspect whether your pattern matches.
What is Regex Tester?
A regular expression, or regex, is a pattern used to search, match and manipulate text according to defined rules.
How to use Regex Tester
- Enter your regular expression.
- Add the text you want to test.
- Review the matches produced by the pattern.
Common use cases
- Testing validation patterns.
- Debugging search expressions.
- Building text-processing features.
Frequently Asked Questions
What is a regex?
A regex is a pattern that describes a set of text strings and can be used for searching, matching and text manipulation.
Can I test regex patterns before using them in code?
Yes. A regex tester is useful for checking how a pattern behaves against representative input before adding it to an application.