UUID Generator
Generate 1 to 100 random UUID v4 identifiers instantly in your browser. Copy them all with one click for databases and APIs.
About this tool
Generate 1–100 random version-4 UUIDs in a single click. Each identifier follows the standard 8-4-4-4-12 hex format with the v4 version and variant bits set, ready to paste into a database insert, API payload or config file.
The batch mode is the time-saver: generate thirty foreign keys for a seed script, or ten request IDs for a test suite, and copy the whole block with one selection. Everything happens locally — nothing is sent anywhere.
FAQ
What is a UUID?
A Universally Unique Identifier is a 128-bit value formatted as 32 hex digits in 5 groups. Version 4 is generated with randomness.
Are UUIDs guaranteed unique?
Practically, yes. The space of v4 UUIDs (2^122 options) makes collisions vanishingly unlikely, even across billions of rows.
Where are UUIDs used?
Database primary keys, API request IDs, session tokens, file names and any system needing an ID that never collides across servers.