Regex Tester
Test your pattern
See matches and replacements as you type.
Your text stays in your browser.
Expression
Uses your browser’s JavaScript regex engine.
Test text
Matches
0 foundReplace
Test JavaScript regular expressions, inspect matches, and preview replacements in your browser.
Frequently Asked Questions
Is my text uploaded?
No. Testing happens locally in your browser.
Which regex syntax is supported?
This tool uses your browser’s JavaScript regular expression engine and its supported flags.