UUID GENERATOR
UUID Generator
Generate unique identifiers (UUID v4) for your applications
About UUIDs
What is UUID?
UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across both space and time, with very low probability of duplication.
UUID v4
Version 4 UUIDs are generated using random or pseudo-random numbers. They have the format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.
Use Cases
Database primary keys, session IDs, file names, API keys, and any scenario requiring unique identifiers.
Technical Details
- Length: 36 characters (including hyphens) or 32 hex characters
- Format: 8-4-4-4-12 hexadecimal digits
- Uniqueness: Practically guaranteed to be unique
- Randomness: 122 bits of randomness in UUID v4
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