What is ULID?

ULID (Universally Unique Lexicographically Sortable Identifier) is a globally unique identifier that combines timestamp and randomness. Compared to traditional UUIDs, it is sortable and more readable, suitable for distributed systems and databases.

Globally unique: avoids collisions
Sortable: arranged by creation time
Compact & readable: shorter than UUIDs and easier to store
Use cases: log IDs, database primary keys, message queue identifiers, etc.

ULID Generator 🔑

ULID is an identifier combining timestamp and randomness, designed to address the limitations of traditional UUIDs by providing global uniqueness and sortability.

Number of ULIDs

Generated ULIDs

Click the box to copy

Frequently Asked Questions (FAQ)

What is ULID?

ULID is a globally unique identifier combining timestamp and randomness, ensuring uniqueness and sortable by creation time.

How is ULID different from UUID?

UUID is a non-sortable random identifier, while ULID supports time-based sorting, is more compact, and has better readability.

Can I generate multiple ULIDs at once?

Yes, this tool supports generating up to 100 ULIDs in a single batch.

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