ID Generator
Generate UUIDs (v1, v4, v7), ULIDs, and nanoids — in bulk, copy-on-click. Everything is generated in your browser.
v4 for random, v7 for sortable DB keys, ULID/nanoid for compact + URL-safe.
A UUID is a 128-bit identifier. v4 is fully random — the everyday default when you just need uniqueness. v7 embeds a millisecond timestamp in the high bits, so v7 IDs sort chronologically — ideal for database primary keys (better index locality than v4). v1 is the legacy time + MAC-based scheme, largely superseded by v7.
ULID packs a 48-bit timestamp + 80 bits of randomness into a 26-character Crockford base32 string — sortable and case-insensitive. nanoid is a compact, URL-safe random string (21 characters by default) popular when you want something shorter than a UUID in URLs. All of these are generated locally using your browser's cryptographic random source — nothing is requested from or sent to the server.