Free UUID Generator
Generate cryptographically random UUIDs (v4 or time-ordered v7) in bulk. Copy individually or download all — free, instant, private.
How to Use the UUID Generator in 3 Steps
- Choose how many UUIDs you need — a single ID or a whole batch.
- Click Generate — cryptographically random v4 UUIDs appear instantly.
- Copy a single UUID or download the whole list as a text file.
Frequently Asked Questions
Is it free?
Yes, completely free with no limits and no cost. Generate as many UUIDs as you need — one at a time or a thousand in bulk. No credits, no signup, no premium tier — unlimited UUID generation for everyone, forever.
Do I need to sign up?
No signup needed — ever. Just open the page and generate UUIDs instantly: no account to create, no email address required, no trial period. The generator runs entirely in your browser the moment the page loads, with zero setup required.
Is my data/code private?
Yes, 100% private. UUIDs are generated locally in your browser using the Web Crypto API — nothing is sent to any server, stored, or logged. The IDs you generate are yours alone and can never be seen or duplicated by anyone else.
What is a UUID and what is v4?
A UUID is a 128-bit universally unique identifier, written as 32 hexadecimal digits in five groups (8-4-4-4-12), like 550e8400-e29b-41d4-a716-446655440000. Version 4 means it's randomly generated — widely used as the standard choice for database primary keys, session IDs and distributed systems.
Are the UUIDs really random and unique?
Yes. This generator uses your browser's cryptographically secure random number generator (crypto.getRandomValues), never the weak Math.random. With 122 random bits per UUID, the chance of any two v4 UUIDs colliding is effectively zero — safe for production databases and APIs.
Can I generate UUIDs in bulk?
Yes. Choose how many you need and generate them all with a single click. The full list appears instantly and can be copied or downloaded as a plain text file — handy for seeding test databases, batch imports or API keys.
Related Tools