UUID Generator

Generate random UUID v4 identifiers instantly. Bulk generation and one-click copy.

Count

Format

Generated UUIDs

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across both space and time. UUID v4 uses random numbers, giving a practically zero chance of collision (1 in 2^122).

Common Uses

Database Keys: Primary keys for distributed systems
API Identifiers: Resource IDs in REST APIs
Session Tokens: Unique session identifiers
File Names: Temporary or unique file naming

FAQ

Are these cryptographically secure?

Yes, they use crypto.getRandomValues() which provides cryptographically secure random numbers.

What is the difference between UUID and GUID?

They are essentially the same thing. GUID is Microsoft's term; UUID is the standard term.

Can UUIDs collide?

The probability of collision for UUID v4 is 1 in 5.3×10^36. It's safe to assume uniqueness.

UUID Generator

What is a UUID?

Common Uses

FAQ

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