UUID / GUID Generator
Generate random, secure Version-4 UUIDs (Universally Unique Identifiers) in bulk with custom formatting options.
What is a UUID / GUID?
A UUID (Universally Unique Identifier), also referred to as a GUID (Globally Unique Identifier) in Microsoft ecosystems, is a 128-bit identifier standardized by RFC 4122. A Version-4 UUID relies on cryptographically strong pseudo-random numbers to guarantee uniqueness across distributed databases without a central coordination authority.
The total number of possible UUIDv4 combinations is \(2^{122}\) (approximately \(5.3 \times 10^{36}\)), making the probability of generating a duplicate virtually zero.
🎲 Cryptographically Secure
Generated directly using the browser's native crypto.randomUUID() CSPRNG engine.
📦 Bulk Generation
Create up to 500 unique IDs in a single batch ready for database seeding, mocks, or API payloads.
⚡ 100% Client-Side
Zero network latency. Identifiers are generated in memory and never sent across the internet.