Online UUID Generator

Use this free Online UUID Generator to generate unique UUIDs instantly. Create random UUIDs for databases, APIs, applications, testing, and development projects.

Online UUID Generator

UUID Version Option

Include HyphensUppercase Hex Letters

Generated Output

No UUIDs generated yet

Click generate to create unique IDs

100% Secure & Private

Processed locally in your browser. No data is sent to our servers.

How to use

Use this uuid generator online in three simple steps

Our workflow is designed to be straightforward, allowing you to complete your task in seconds.

Pick a UUID version

Choose v4 for random IDs, v1 for time-based, or v7 for sortable, timestamp-ordered identifiers.

Set quantity and format

Select how many UUIDs to create and set casing, hyphens, and output as lines, commas, or JSON.

Generate and copy

Click generate to build the IDs locally, then copy the batch straight into your code or database.

Multi-Version

Supports standard v4 random, v1 time, and newest v7 formats.

Bulk Exports

Generate thousands of UUIDs instantly and copy to clipboard.

Formatting Options

Easily toggle hyphens, braces, and uppercase/lowercase letters.

Crypto-Safe

Uses the browser's native cryptographic RNG for uniqueness.

Use cases

Useful for different workflows

Database Keys

Assign UUID v4 values as primary keys in SQL or NoSQL.

Session Identifiers

Create unique transaction session strings.

Testing Mockups

Populate test columns with unique token strings.

Tool guide

Generate UUID Online

An Online UUID Generator is a tool that creates unique identifiers instantly. UUID stands for Universally Unique Identifier. It is commonly used in software development, databases, APIs, and applications to identify records or objects uniquely.

Here is an example of a generated UUID:

550e8400-e29b-41d4-a716-446655440000

Free UUID Generator Online

To generate a UUID online, click the generate button and the tool will instantly create a new unique UUID. You can copy the UUID and use it in your project, database, API, or test data.

What is a UUID?

A Universally Unique Identifier (UUID) is a 128-bit label used to uniquely identify information in computer systems without significant central coordination.

How to Use the Online UUID Generator?

Adjust settings like quantity, casing (uppercase), and version (v4, v1, or v7), then click generate to get unique identifiers instantly. You can choose to generate a single UUID or select options for multiple UUIDs to download or copy in bulk.

Where Can You Use UUIDs?

UUIDs are commonly used for:

Database record IDs
API request IDs
User IDs
Product IDs
Session IDs
Testing data
Software development
Distributed systems

UUID Generator for Developers

A UUID generator online helps developers quickly create unique IDs without writing code. It is useful when testing apps, creating sample data, or generating unique values for databases.

FAQ

Frequently asked questions

What is a UUID?

A UUID is a unique identifier used to identify data, records, users, objects, or resources in software systems.

Is this online UUID generator free?

Yes, this online UUID generator is free to use.

Can I generate multiple UUIDs at once?

Yes. You can generate up to 100 UUIDs in a single batch and export them as line-separated text, comma-separated values, or a JSON array.

What is the difference between v1, v4, and v7 UUIDs?

Version 1 embeds a timestamp and node, version 4 is fully random, and version 7 is timestamp-ordered so IDs sort chronologically, which is handy for database keys.

Where can I use generated UUIDs?

UUIDs work well as database record IDs, API request IDs, session tokens, test fixtures, and unique keys in distributed systems.

Are the UUIDs generated on your server?

No. Every UUID is generated locally in your browser, so nothing you create is uploaded, logged, or shared. It is safe to use for private projects.

From our blog

Generate UUIDs the Easy Way

Read the full guide behind the Online UUID Generator and get the most out of it.

Read the guide

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