UUID Generator
Generate UUID v4 and v7 identifiers instantly
UUID v4 — Random. Best for general-purpose unique IDs.
UUID v7 — Timestamp-based + random. Sortable by creation time. Great for database primary keys.
UUID v7 — Timestamp-based + random. Sortable by creation time. Great for database primary keys.
What is UUID Generator?
UUIDs (Universally Unique Identifiers) are 128-bit identifiers used to uniquely identify resources in distributed systems. UUID v4 uses random generation, while UUID v7 embeds a timestamp for sortability. This tool generates single or bulk UUIDs with options for formatting (lowercase, uppercase, no dashes) — all computed locally in your browser using the Web Crypto API.