RegexKop

Local browser-side regular expression tester & analyzer

100% Private & Safe: All regex matching computations and match overlays compile inside local browser Javascript.

Regex Configuration

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Matches will highlight here in real time as you configure your regex pattern

Total Matches Found: 0

Write a regex pattern to see its character explanations

Email Address Check ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$
Phone Number E.164 ^\+?[1-9]\d{1,14}$
Hex Color Codes ^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$
Date format (YYYY-MM-DD) \d{4}-\d{2}-\d{2}
URL Address locator https?:\/\/[^\s/$.?#].[^\s]*