UUID and ID Generator
Generate UUIDs (v1, v4, v7), ULIDs, and NanoIDs in bulk. Time-ordered v7 for databases, classic v4 for general use, ULID for sortable lexicographic ids. All generated locally.
UUID, ULID, NanoID
UUID v4: 122 bits of randomness, the default. Use it when uniqueness is the only requirement.
UUID v7: time-ordered, sortable, still uniformly distributed. Best for primary keys in databases (Postgres, MySQL, SQL Server) because it preserves insertion order and helps B-tree indexes.
UUID v1: time + node id (legacy). Use only when you must interoperate with older systems.
ULID: 26 character lexicographically sortable id. Compact and Crockford base32 (no ambiguous chars).
NanoID: short, URL-safe, 21 character default. Good for public-facing slugs.
Privacy
All ids are generated locally with crypto.getRandomValues. No id ever leaves your browser.