ULID Generator
Generate Universally Unique Lexicographically Sortable Identifiers
ID Type
Quantity
What is a ULID?
A ULID (Universally Unique Lexicographically Sortable Identifier) is a 26-character, URL-safe string that combines a timestamp and random data. ULIDs are designed to be lexicographically sortable, so they can be used as database keys that maintain insertion order. The first 10 characters encode the timestamp (in milliseconds), and the remaining 16 are random. ULIDs are a modern alternative to UUIDs for systems that need both uniqueness and order, and are especially popular in NoSQL and event-sourcing systems.
Format
ULID consists of a 10-character timestamp and 16-character random data
TTTTTTTTTTxxxxxxxxxxxxxxxxCommon Use Cases
- Database keys
- Event ordering
- URL-friendly IDs
About This Tool
Our ULID Generator allows you to quickly generate unique identifiers for your projects. You can generate up to 100 IDs at once, and easily copy them to your clipboard with a single click.