ULID Generator

Time-sortable identifiers

Free Online Tool

ULID Generator — Complete Guide & Instructions

ULIDs combine a millisecond timestamp with randomness into a 26-character, lexicographically sortable identifier — perfect for database primary keys. Generate up to 20 at once or paste a ULID to decode its embedded time.

How to Use ULID Generator

  1. 1 Enter a count (or leave as 5).
  2. 2 Click Generate.
  3. 3 Or paste a ULID to decode its timestamp.

Key Features & Capabilities

  • Up to 20 ULIDs per click.
  • Timestamp decoder.
  • Cryptographically random.