Regex Tester

Test and debug regular expressions in real-time. See matches highlighted instantly.

Regular Expression

/ /

Test String

Matches

0 matches

Enter a pattern and test string to see matches

Replace

Replacement String

Quick Reference

. Any character

\d Digit [0-9]

\w Word char [a-zA-Z0-9_]

\s Whitespace

^ Start of string

$ End of string

* 0 or more

+ 1 or more

? 0 or 1

{n} Exactly n

{n,m} n to m

[abc] Character set

(abc) Capture group

a|b a or b

Flags

g Global

i Case insensitive

m Multiline

s Dotall

u Unicode

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