๐Ÿ†” UUID & Random ID Generator

Generate cryptographically random UUID v4, time-ordered UUID v7, ULID, NanoID, short IDs and custom-alphabet tokens in bulk. Uses your browser's crypto.getRandomValues โ€” nothing is generated on a server, nothing is logged.

Which one should I use?
UUID v4 โ€” the default everywhere. 122 random bits; collisions are not a practical concern.
UUID v7 โ€” same shape, but the first 48 bits are a millisecond timestamp, so rows sort by creation time and database indexes stay compact. Prefer it for new primary keys.
ULID โ€” 26-character Crockford base32, also time-sortable, no hyphens, case-insensitive.
NanoID โ€” 21 URL-safe characters with the same collision resistance as UUID v4 but shorter.
Short ID โ€” 8 characters from a 32-letter alphabet (โ‰ˆ40 bits). Fine for coupon codes and share links, not for security tokens.