UUID generator
UUIDs version 4 (random) or version 7 (sortable by time), up to 100 at once.
Runs only in your browser.
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Version
Purely random (122 bits).
1 to 100
UUIDs
Frequently asked questions
Version 4 or 7?
Version 4 is purely random. Version 7 starts with the time in milliseconds and can therefore be sorted by creation time; this eases the load on database indexes.
Can two UUIDs be the same?
Practically never. A version 4 UUID contains 122 bits of randomness, version 7 has 74 bits besides the time. Even with billions of UUIDs, a duplicate is extremely unlikely.
Are the UUIDs stored?
No. They are created in your browser and are not stored or sent anywhere.