About this tool
Generate secure Universally Unique Identifiers (UUID v4) for your databases, APIs, and applications. A UUID is a 128-bit number used to identify information in computer systems.
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Use cases
- Databases: create unique primary keys without collision risk.
- APIs: identify resources securely and anonymously.
- Sessions: generate session or transaction IDs.
- Microservices: synchronize entities across multiple systems.
FAQ
What is a UUID v4?
Version 4 is randomly generated. It is the most commonly used version.
Are UUIDs truly unique?
The probability of collision is so low that it is considered zero for most practical purposes.
Can I use a UUID as a primary key?
Yes, it is common practice, especially in distributed architectures.