UUID Generator

Generate RFC-compliant UUID v4 and v7 identifiers in your browser. No server, no logging.

18716b6b-d227-4634-ab58-a30a9d72ef2e

v4 — Fully random. No temporal information. Use it when you need opaque, unguessable identifiers with no ordering requirement.

v7 — Timestamp-prefixed random. Sortable by creation time, making it database-index-friendly. Prefer v7 for primary keys.