Dev Tools/UUID Generator
UUID Generator
Generate random UUIDs (v4 and v7). Bulk generate up to 100 at once.
Free UUID Generator
Universally Unique Identifiers (UUIDs) are 128-bit identifiers used as primary keys in databases, request IDs in distributed systems, session tokens, file names, and anywhere you need a unique identifier that won't collide with others. UUID v4 is randomly generated and suitable for most use cases. UUID v7 is timestamp-based, which makes it sortable by creation time — useful for database primary keys where chronological ordering matters.
This generator uses crypto.randomUUID() for v4 when available, falling back to crypto.getRandomValues() with correctly set version (0100) and variant (10xx) bits. All generation happens in your browser — nothing is sent to any server.