ULID Generator

Generate Unique Lexicographically Sortable Identifiers

How to Use the ULID Generator

  1. Select the quantity of ULIDs to generate (up to 100)
  2. Choose output format: Raw or JSON
  3. Click the Generate button
  4. Copy or refresh the results as needed

What is a ULID?

ULID stands for Unique Lexicographically Sortable Identifier. It is a 128-bit identifier that is both universally unique and sortable by time. ULIDs are designed to be efficient for databases and distributed systems.

Why Use ULID?

  • Lexicographically sortable by creation time
  • Better database index performance than UUID v4
  • Human-readable using Crockford Base32 encoding
  • Safe for distributed systems
  • Supports bulk generation

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