Random UUID Generator
Create cryptographically random UUID v4 identifiers for databases, APIs and development projects. Pick a format, choose a count, and generate instantly — all in your browser.
UUID Generator
Click generate to create a UUID
How It Works
Three steps to a unique identifier.
Pick a format & count
Choose dashed, raw, uppercase or braces format, then set how many UUIDs to create (1–100).
Generate
Click Generate to create cryptographically random v4 UUIDs instantly.
Copy or reuse
Copy the main UUID in one click, or copy individual items from a batch list.
FAQ
Common questions about the UUID generator.
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit value shown as 36 characters, used to identify records without a central coordinator.
Are generated UUIDs cryptographically random?
Yes. The tool uses crypto.randomUUID(), which relies on the Web Crypto API — a cryptographically secure source of randomness.
Which formats are supported?
Dashed (standard), raw (no hyphens), uppercase, and braces — e.g. {550e8400-e29b-41d4-a716-446655440000}
Can I generate multiple UUIDs at once?
Yes. Set the count to 5, 10, 25, 50 or 100 and the generator prints a numbered batch list with one-click copy per item.
Where can I use UUIDs?
Primary keys in databases, API request IDs, payment references, file names, and anywhere you need collision-resistant identifiers.
Is my data sent to a server?
No. All UUIDs are generated locally in your browser. Nothing is uploaded, tracked or stored.