UUID Generator
Generate multiple UUIDs in versions 1, 3, 4, and 5 with custom namespace options.
Generate UUIDs in versions 1, 3, 4, and 5 with custom namespace options. Batch-generate unique identifiers for databases, APIs, and distributed systems.
UUID Generator
Generate multiple UUIDs in versions 1, 3, 4, and 5 with custom namespace options.
About this tool
Generate UUIDs in versions 1, 3, 4, and 5 with custom namespace options. Batch-generate unique identifiers for databases, APIs, and distributed systems.
Choose the UUID version and namespace to create multiple UUIDs at once.
Version
Output appears here...
Choose the UUID version and namespace to create multiple UUIDs at once.
Version
FAQ
Common questions and answers about this topic.
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify information in computer systems without requiring central coordination.
What UUID versions are supported?
Version 1 (time-based), Version 3 (namespace with MD5), Version 4 (random), and Version 5 (namespace with SHA-1) are all supported.
Are generated UUIDs truly unique?
Yes, the probability of collision is negligibly small. UUID v4, for example, has 2^122 possible values, making duplicates virtually impossible.
Is my data sent to any server?
No, UUID generation happens entirely in your browser. The identifiers are created locally with JavaScript — no data is sent to any server.