Tool Information
Our ULID Generator is a fast and developer-friendly tool designed to create Unique Lexicographically Sortable Identifiers for modern applications and distributed systems. It allows users to generate one or multiple ULIDs instantly, making it suitable for developers, database designers, and system architects who need reliable and sortable unique identifiers. The tool supports bulk generation with flexible output formats, including raw and JSON, enabling seamless integration into databases, APIs, and backend workflows. Each ULID is time-based and lexicographically sortable, which helps maintain insertion order and improves indexing performance compared to traditional random identifiers. The ULID Generator runs entirely in the browser with a clean and distraction-free interface, requiring no external dependencies or setup. It is ideal for use cases such as database primary keys, event tracking, and distributed systems where uniqueness, ordering, and scalability are essential.
ULID Generator
Generate Unique Lexicographically Sortable Identifiers
How to Use the ULID Generator
- Select the quantity of ULIDs to generate (up to 100)
- Choose output format: Raw or JSON
- Click the Generate button
- 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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