ULID

programming

Stands for: Universally Unique Lexicographically Sortable Identifier

A sortable, unique identifier alternative to UUID.

Universally Unique Lexicographically Sortable Identifier encodes a timestamp plus randomness so IDs sort roughly by creation time while staying unique. It was a popular answer to UUIDv4's lack of ordering before UUIDv7 arrived.

Also known as: ulid

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