regex.quest
Tester
Builder
Cheatsheet
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About
☀️
Tester
Builder
Cheatsheet
Learn
About
regex.quest v1.0
Visual Builder
Construct patterns by stacking blocks.
Generated Pattern
Click blocks below to start building...
COPY
Your canvas is empty.
Add blocks from the library below.
Block Library
Start
Start of line
End
End of line
Word
Alphanumeric + _
Digit
0-9
Space
Whitespace
Any
Any character
Text
Exact match
Set
Character set
Group
Capture group
Named Group
Named capture group
Lookahead
Positive lookahead: match if followed by
Lookbehind
Positive lookbehind: match if preceded by
Unicode Letter
Any Unicode letter (requires u flag)
Unicode Number
Any Unicode number (requires u flag)
Unicode Punct
Any Unicode punctuation (requires u flag)
Unicode Symbol
Any Unicode symbol (requires u flag)
regex.quest