UUID v4 / v7, ULID and NanoID generator
Generate unique IDs (UUID, ULID, NanoID) by the hundred with your browser's secure random generator.
About UUID generator
A UUID is a 128-bit ID that is practically never duplicated — used for database records or file names. v4 is fully random; v7 starts with a timestamp, so IDs sort by creation time and keep database indexes fast.
ULID is shorter and time-ordered like v7; NanoID is short and URL-friendly. All IDs use crypto.getRandomValues.
FAQ
Should I use v4 or v7?
For database primary keys v7 is better because it sorts by time.
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