Loading...

ULID Generator (Sortable Unique Identifiers)

Generate 26-character Crockford Base32 ULIDs (Universally Unique Lexicographically Sortable Identifier) for chronological database keys.

Key Technical Capabilities

  • Lexicographically SortableNaturally orders records by timestamp without secondary index keys.
  • URL-Safe CharactersUses Crockford Base32 excluding I, L, O, U to avoid visual ambiguity.

How to Generate ULIDs

  1. Click GenerateGenerate new chronological ULIDs.
  2. Copy ULIDCopy 26-character sortable identifier.

Frequently Asked Questions

Why choose ULID over UUID v4?
ULIDs are sortable by creation time, improving database B-tree index performance.