UUID Generator

Generate unique identifiers instantly

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Generated UUIDs

What is UUID?

UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across both space and time. UUIDs are used in software development to identify information without requiring a central coordinating authority.

UUID v4 (Random)

Generated using random or pseudo-random numbers. Most commonly used for general purposes.

Example: 550e8400-e29b-41d4-a716-446655440000

UUID v1 (Timestamp)

Based on timestamp and MAC address. Useful when time-ordered IDs are needed.

Example: 6ba7b810-9dad-11d1-80b4-00c04fd430c8

Common Use Cases

• Database primary keys

• Session identifiers

• API request tracking

• File naming

• Distributed systems

What is UUID Generator?

A UUID generator creates unique identifiers for records, uploads, database rows, and test data without depending on a custom script.

UUID Generator helps when you need Generate UUID v1/v4 in one tab instead of switching to desktop software or a temporary script.

How to use this tool

Choose the UUID version or output style if the tool offers options.
Generate one or more identifiers.
Copy the values into your app, database seed, or test fixture.

Common use cases

Creating IDs for mock API responses and frontend states.
Preparing sample database rows or import files.
Generating stable-looking test values during QA and debugging.

Tips for better results

Confirm which UUID version your application expects before generation.
Use batch generation when you need many sample records at once.
Keep generated IDs separate from production identifiers in shared docs.

Example workflow

Input example\nOutput example

FAQ

Why use a UUID generator in the browser?

It removes the need for a separate script when you only need a few identifiers quickly.

Are UUIDs useful for test data?

Yes. They are commonly used in mocks, fixtures, and sample imports because they look realistic and avoid collisions.

Should I use the same UUID twice?

Usually no. The point of a UUID is to create a fresh identifier for a distinct object or record.

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