Regex Tester

Use our free Regex Tester to test, debug, and visualize your regular expressions instantly. Match patterns against sample text and see highlighted results in real time. Ideal for developers working with JavaScript, Python, or any language supporting regex.

Regular Expression

Pattern

Flags

Global (g) - Find all matches

Ignore Case (i) - Case insensitive

Multiline (m) - ^ and $ match line breaks

Test Text

Match Results

0 matches

No matches found

Quick Reference

Character Classes

. - Any character

\d - Digit

\w - Word character

\s - Whitespace

Quantifiers

* - 0 or more

+ - 1 or more

? - 0 or 1

{n,m} - Between n and m

Anchors

^ - Start of string

$ - End of string

\b - Word boundary

Groups

() - Capture group

(?:) - Non-capture

| - Alternation