DK
DevKit
Developer Tools
Home
About
Tools
Converters & Encoders
Text Case Converter
Base64 Encoder/Decoder
JSON Formatter
TOML Formatter
New
YAML Converter
New
TOON Generator
New
Markdown Preview
New
Timestamp Converter
New
Unit Converter
New
Generators
Lorem Ipsum Generator
UUID Generator
QR Code Generator
Password Generator
New
Gradient Generator
New
Web Development
Image Extractor
Image Optimizer
New
URL Encoder/Decoder
Meta Tag Generator
New
Utilities
Color Picker
Hash Generator
Diff Checker
New
RegEx Tester
New
Cron Expression Generator
New
JWT Debugger
New
Made with
❤️
by
MartinCode
24 tools • Privacy First
RegEx Tester
Test regular expressions with visual feedback
Regular Expression
/
/
Flags:
g
i
m
Common Patterns
Email
[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}
URL
https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)
Phone (US)
\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}
Hex Color
#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})
IP Address
\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b
Test String
Test Pattern