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{ } JSON Formatter
✅ JSON Validator
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🔍 Regex Tester
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Design
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Security
🔒 Password Generator
PDF Tools
📑 Merge PDF
✂️ Split PDF
🗜️ Compress PDF
🔄 Rotate PDF
🗂️ Organize PDF
🔓 Unlock PDF
Developer Tools
{ } JSON Formatter
✅ JSON Validator
🔐 Base64
🔗 URL Encode/Decode
🔑 Hash Generator
🆔 UUID Generator
🔢 Base Converter
🔍 Regex Tester
🔓 JWT Decoder
🕐 Timestamp
Design
🎨 Color Converter
Security
🔒 Password Generator
🔍
Regex Tester
Write a regular expression and test it against any text — matches highlight
live as you type
.
Regular Expression
/
/
Flags
g global
i insensitive
m multiline
s dotAll
Quick Patterns
Email
URL
IP Address
Phone (E.164)
Hex Color
Date (YYYY-MM-DD)
Capitalized Word
Test String
Enter a pattern above
📄 Load Sample
🗑 Clear
Highlighted Matches
All Matches
🔒 All regex testing runs locally in your browser — nothing sent to any server.