Regex Cheat Sheet
Developer ToolsQuick reference for regular expression syntax and tokens.
^ / $
Start / End of string
\d / \D
Digit / Non-digit
+ / *
One or more / Zero or more
?
Optional (0 or 1)
About This Tool
A comprehensive reference guide for Regular Expressions. Look up anchors, quantifiers, character classes, and groups to speed up your coding workflow.
Frequently Asked Questions
Regex syntax is complex and hard to memorize. A cheat sheet provides a quick way to look up specific symbols without pausing your development flow.
Anchors like caret (^) and dollar sign ($) do not match characters but instead match positions, specifically the start and the end of a string.
Quantifiers define how many times a character or group should be repeated, such as exactly five times or at least once, using symbols like {5} or +.
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