UUID Generator
Generate RFC 4122 compliant UUIDs in multiple versions and formats. Cryptographically secure with validation.
UUID Generator
Generate RFC 4122 compliant UUIDs
1 UUID
1Drag or type to adjust1000
Include Hyphens
Standard format with/without hyphens
About UUID Version V4
Version 4 (Random)
Cryptographically secure random numbers. Most common use.
Uses crypto.getRandomValues() for security
Common Use Cases
Session IDs, API keys, security tokens, general purpose
Generated UUIDs
0 RFC 4122 identifiers
Click generate to create UUIDs
Version
V4
Format
Standard
Valid
0/0
Generation History
Your generation history will appear here
Security & Compliance
- RFC 4122 Compliant: Follows UUID standards for interoperability
- Crypto-Secure: v4 UUIDs use
crypto.getRandomValues()when available - Local Generation: All UUIDs generated in your browser - no data sent to servers
- 2^128 Possibilities: Virtually zero chance of collision
UUID Generator Features
RFC 4122 Compliant
Proper v1 and v4 UUIDs with correct version/variant bits
4 Output Formats
Standard, Compact, URN, and Base64 with validation
Batch Generation
Generate up to 1000 UUIDs at once with error tracking
Cryptographic Security
Uses crypto.getRandomValues() for secure random generation