v4 & v7 formats
Random v4 for anonymity, time-ordered v7 for index-friendly keys.
Dev Workbench
Batches of UUIDs, v4 and v7, on demand →
Generate unique keys for seeds, fixtures, and identifiers — in bulk.
#uuid#id#keysFree · Unlimited
Create unique IDs for keys and records
1–100Batch size
v4 + v7Versions
0Collision tracking
Why it works
v4 & built in
Batch generation
Generate up to a hundred identifiers in one run.
One-click copy
Copy the whole batch for fixtures, seeds, and scripts.
Where it pays off
Made for real workflows
Database seeding
Get stable, unique keys for dev and staging datasets.
Test fixtures
Fill mocks with realistic identifiers instead of hand-typed ones.
Key creation
Standardize on v7 where insert-order sorting matters.
FAQ
Quick answers
What's the difference between v4 and v7?
v4 is random; v7 embeds a timestamp so keys sort in creation order.
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