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ULID Generator

ULID generator tool. Generate ULIDs when you need primary keys for databases or unique identifiers. ULIDs are sortable in chronological order and can be used as an alternative to UUIDs. You can generate up to 100 ULIDs in a single operation.

Generated Results
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How to use

About this tool

Generates ULIDs in the browser. Lexicographically sortable by time; a modern alternative to UUIDs.

How to use

Click "Generate" for one, or enter a count for batch. Click to copy.

Options

Count: A positive integer. Generates that many ULIDs in one go.

Use cases

• Distributed IDs • Time-ordered log/event IDs • Sortable DB keys • More readable than UUIDs

Code Examples

JavaScript
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1import { ulid } from 'ulid';
2
3ulid();  // 01ARZ3NDEKTSV4RRFFQ69G5FAV
Python
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1import pythonulid
2
3uuid = pythonulid.ULID()  # or ulid-py
PHP
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1use Hideyo\Ulid\Ulid;
2
3$ulid = (string) new Ulid();

Privacy and data

Generation is entirely in-browser; nothing is sent to a server.