UUID Generator
Free online UUID v4 generator. Create cryptographically random unique identifiers in bulk — standard RFC 4122 output.
1.c1fcc7ae-1d83-4895-a6d0-87529bb0993b点击复制
2.90fdf6e0-fe43-40c9-83ab-ac33847b88a6点击复制
3.dc869fe6-9e15-46c7-b69e-2cdbb248189e点击复制
4.34490c0b-5443-4a50-89dc-a879df2a7f6c点击复制
5.eef118d5-81dc-4989-8391-ba98dd0578cd点击复制
FAQ
What version of UUID?
Version 4 — 122 bits of cryptographic randomness, collision odds are negligible.
Can I generate many at once?
Yes, bulk generation up to hundreds with one click.
Are these safe as database keys?
Widely used as such. For indexed columns at scale, consider ordered UUIDs to reduce page splits.