UUID Generator (v1–v8)

UUID version Version 1 (time-based) Version 3 (name-based, MD5) Version 4 (random) Version 5 (name-based, SHA-1) Version 6 (ordered time) Version 7 (Unix time + randomness) Version 8 (custom, SHA-256 + salt)

Namespace UUID (optional)

Optional for name-based versions (v3, v5, v8). If provided, must be in standard UUID format (8-4-4-4-12 hex digits).

Name

Required for name-based versions (3, 5, 8). Same input → same output (deterministic).

Quantity

Generate between 1 and 100 UUIDs at once.

Continuity mode Index-based (name-1, name-2…) Chain-based (each UUID feeds the next)

Only applies to name-based versions (3, 5, 8).

Start index

Used only in index-based continuity mode.