Free UUID Generator
Generate cryptographically random UUID v4 identifiers. Generate one at a time or bulk generate 10 UUIDs. Uses the Web Crypto API.
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What Is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across space and time. UUID v4 uses random numbers to generate identifiers with a collision probability so low it is effectively zero. UUIDs are used in databases, distributed systems, session tokens, and API keys.
The format is xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where 4 indicates version 4 and y is one of 8, 9, a, b.
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