UUID v7 Generator
Generate UUID v7 values online: time-sortable UUIDs with a 48-bit millisecond timestamp and 74 random bits.
Generated IDs
How this ID is built
- Layout
- 48-bit Unix millisecond timestamp, version 7 bits, RFC variant bits and random fill.
- Entropy
- 74 random bits in this implementation; there is no monotonic counter.
- Time
- Yes. The first 48 bits encode creation time, so IDs sort by time across different milliseconds.
- Collision risk
- Within one millisecond, collisions depend on 74 random bits; extremely high same-ms volume should use a coordinated ID service.
- Example
019f3d6e-6cc0-75fd-9d29-a716c8be7a90
Your IDs are generated locally with strong browser randomness. Nothing is sent to BroBroGo.
FAQ
Why choose UUID v7 instead of UUID v4?
UUID v7 keeps the UUID shape but sorts by time, which can help logs, database indexes and event streams stay roughly chronological.
Does UUID v7 hide the creation time?
No. The timestamp is part of the ID. Use UUID v4 or NanoID if you need an opaque identifier without time data.