UUID Generator
Generate UUID v1, v4, and v5. Batch up to 100. Validate & detect version. All client-side.
Configuration
Version
Namespace
Name
Format
Count
max 100
Enter a number between 1 and 100
UUID v4 — Random
122 bits of cryptographic randomness. Most common choice for general-purpose unique IDs. Uses crypto.randomUUID().
UUID v1 — Timestamp
Embeds a 60-bit timestamp (100-ns since Oct 15, 1582) + 14-bit clock sequence + 48-bit pseudo-node. Monotonically increasing.
UUID v5 — Named
Deterministic. SHA-1 hash of a namespace UUID + name string. Same inputs always produce the same UUID. Defined in RFC 4122.