UUID Generator

Generate UUID v4 and v7 identifiers instantly. Bulk generation supported.

Version

Count

Examples

Database IDs: generate UUIDs for primary keys when you don’t want sequential IDs.
Event tracking: use UUID v7 when you want roughly time-ordered identifiers.
Bulk imports: generate 50–100 UUIDs at once and paste into a CSV.

Tip: UUID v4 is random; UUID v7 includes a time component so it sorts better in many databases.

FAQ

Are UUIDs guaranteed unique?
Not mathematically guaranteed, but collisions are extremely unlikely when generated correctly.

Should I use v4 or v7?
Use v4 for general unique IDs. Use v7 if you want IDs that generally increase over time (better index locality).

Is generation local?
This tool fetches UUIDs from an API endpoint. Avoid using it for secrets or cryptographic keys.

UUID v4 vs v7 (quick guide)

v4 is random and widely supported. v7 is time-ordered, which can be better for database indexes and sorting, but support may vary by language/framework.

Tip

If you store UUIDs as strings, keep them lowercase and consistent to avoid duplicate-looking values in case-insensitive systems.