ULID Generator

ULIDs are lexicographically sortable, meaning they sort naturally by time. They are also shorter than UUIDs and avoid using ambiguous characters like I, L, O, and U.

Yes, ULIDs are 128-bit identifiers, which makes them binary-compatible with UUIDs. You can store a ULID in a UUID column in most relational databases like PostgreSQL.

The first 48 bits of a ULID represent a UNIX timestamp in milliseconds. This allows IDs generated later to appear after IDs generated earlier when sorted alphabetically.