Regex Tester

JavaScript Regex:

This tester uses JavaScript's RegExp engine. Results may vary in other languages.

Common Flags:

• • g: Global - find all matches
• • i: Ignore case
• • m: Multiline mode
• • s: Dot matches newlines

Tips:

• • Use capture groups () to extract parts
• • Test with various inputs
• • Escape special characters with \
• • Use online regex validators for complex patterns

Privacy:

All regex testing is done locally. No patterns or test strings are sent to external servers.