Mock Data Generators › UUID Generator
Free Generator

UUID Generator

Generate random version-4 UUIDs for primary keys, correlation IDs, and test fixtures. Generate one or thousands, then download in your format.

Generate UUID →All generators
CSV exportJSON exportSQL exportSQLite exportno signup

Example output

30877432-d102-4670-86d7-e805da846a32bb81e3c2-9b62-4179-b273-c8eb5bb68257c87a171a-c826-4a6f-9ce4-8478dcb74f215d2cce80-38a3-49d5-ae08-53964b50af0371722f24-4f58-4d66-99cb-ee3772a0770221a278f6-4f7f-4d63-93db-dde131ca3766d58e72e3-1027-45df-9f6c-15c0c8e9df4611a11f51-2522-47c3-8712-da86a78c49ea

Deterministic: the same seed always returns the same values.

How to use it

Open the generator →

Frequently asked questions

Are these UUID version 4?

Yes — they follow the random UUID v4 layout (with the version and variant bits set).

Are these uuid values real?

No. Every value is randomly generated and 100% synthetic — safe to use in tests, demos, tutorials, and public examples.

Is the uuid generator free?

Yes — generate and download with no signup and no account.

What formats can I download?

CSV, JSON, SQL (CREATE + INSERT), or SQLite — and you can combine this field with others (names, dates, IDs, …) in the builder.

More generators

Fake Email Address GeneratorFake Name GeneratorFake Phone Number GeneratorFake Address GeneratorRandom IP Address GeneratorRandom Username GeneratorFake Company Name GeneratorRandom Job Title Generator

Need 100k+ rows, an API, or no limits?

Join the Pro waitlist — bulk generation, JSON/SQL/Excel export, and a developer API for generating data on demand.