UUID Generator
Generate UUID v4 in bulk, one-click copy or download as text.
Private & SecureRuns in your browser — nothing is uploaded
Easy to UseJust paste or type — instant results
Free ForeverUnlimited use, no sign-up
Fast & ReliableAdvanced tech, fast and stable
When you need identifiers that will not collide, whether database keys, request ids or file names, a UUID gives you a practically unique value with no central counter. This generates version 4 (random) UUIDs, as many at a time as you need.
How to use: UUID Generator
- 1Enter inputChoose the UUID version (e.g. v4 random or v1 time-based).
- 2Set optionsSet how many identifiers you want to generate at once.
- 3ProcessClick Generate to instantly get a bulk list of identifiers.
- 4Get resultCopy all results in one click or download them as a text file.
Common use cases
Database keysUse them as primary keys so records from different services never clash.
Request tracingTag each request with an id to follow it through the logs across services.
Unique file namesName uploads so two files can never overwrite each other.
Test dataGenerate a batch of ids to seed a development database or fixtures.
Good to know
v4 is randomVersion 4 comes from random data, so it holds no timestamp or machine info. Good for privacy, useless for sorting by time.
Collisions are astronomically unlikelyWith 122 random bits, you would have to make billions per second for years to risk a duplicate. Treat them as unique.
Generate in bulkSet the count and get the whole list at once, ready to paste straight into code or a sheet.
Case and hyphensThey are usually lowercase with hyphens; some systems want them without, so strip the hyphens when needed.