Generators
UUID4 Generator
Generate random UUIDs
ID Generators - UUIDs
Generate universally unique identifiers (UUIDs) for your applications. All generators work offline and keep your data private.
6
UUID Types
✓
Offline
🔒
Secure
All Categories
Generators
UUID3 Generator
Generate name-based UUIDs using MD5 hashing
Generators
UUID1 Generator
Generate time-based UUIDs with MAC address
Generators
UUID5 Generator
Generate name-based UUIDs using SHA-1 hashing
Generators
UUID6 Generator
Generate time-ordered UUIDs (reordered v1)
Generators
UUID7 Generator
Generate time-ordered UUIDs with random data
Technical Specifications
Standard
RFC 4122 / 9562
Length
128 bits
Format
8-4-4-4-12 hex
Versions
1, 3, 4, 5, 6, 7
UUID Version Types
v1 (Time-based):MAC + Timestamp
v3 (Name-based):MD5 Hash
v4 (Random):Cryptographic Random
v5 (Name-based):SHA-1 Hash
v6 (Time-ordered):Reordered v1
v7 (Time-ordered):Unix Timestamp
Applications & Benefits
Universal Identifiers
- • Globally unique across systems
- • No central authority required
- • Distributed generation safe
- • Cross-platform compatibility
Common Applications
- • Database primary keys
- • API resource identifiers
- • Session and transaction IDs
- • File and document naming
- • Microservices communication
Security Features
- • Cryptographically secure randomness
- • No predictable patterns
- • Collision resistance
- • Industry standard compliance