A UUID (Universally Unique Identifier) is a 128-bit number used to identify things like database records, transactions, and user sessions. It is designed to be unique across systems without a central authority.

Which UUID version does this tool generate?

The tool generates version 4 UUIDs, which are built from random numbers rather than from hardware details or the current time. This makes them unpredictable and suitable for most everyday uses.

How many UUIDs can I generate at once?

You can generate a batch at once in various formats, which is handy for seeding test data. For larger jobs you can simply run a new batch.

Can I use UUIDs as database primary keys?

Yes, UUIDs are a popular primary key choice in distributed systems because they can be generated anywhere without a central server. They are longer than auto-increment numbers but guarantee uniqueness across machines.

ToolPilotPro

UUID Generator

Generate UUIDs (Universally Unique Identifiers)

Number of UUIDs

100% Secure

All processing happens in your browser

SSL Encrypted

Your connection is encrypted

No Files Stored

Files are deleted after processing

Lightning Fast

Process files in seconds

About this tool

Generate random UUID v4 identifiers in a single click for use in databases, APIs, applications, and distributed systems. Whether you need primary keys for a database table, unique order IDs for an online store, or test fixtures while building an app, this tool produces collision-free v4 identifiers instantly, in batches when you need them, all free in your browser.

How to use

1Select the number of UUIDs you need
2Choose the output format and case options
3Click the Generate button
4Review the generated identifiers
5Copy the UUIDs for use in your code or database

Pros & Cons

Pros

Generates v4 UUIDs in bulk
One-click copy for each
Instant and free

Cons

UUIDs are unique, not necessarily sequential

Features

100% free to use
No registration required
Processes locally in your browser
Works on all devices

Privacy

Your data is processed entirely in your browser and never sent to our servers. We have no access to your files or data.

Frequently Asked Questions

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UUID Generator: What It Is

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UUID Generator

Generate UUIDs (Universally Unique Identifiers)

Number of UUIDs

100% Secure

All processing happens in your browser

SSL Encrypted

Your connection is encrypted

No Files Stored

Files are deleted after processing

Lightning Fast

Process files in seconds

About this tool

How to use

1Select the number of UUIDs you need
2Choose the output format and case options
3Click the Generate button
4Review the generated identifiers
5Copy the UUIDs for use in your code or database

Pros & Cons

Pros

Generates v4 UUIDs in bulk
One-click copy for each
Instant and free

Cons

UUIDs are unique, not necessarily sequential

Features

100% free to use
No registration required
Processes locally in your browser
Works on all devices

Privacy

Your data is processed entirely in your browser and never sent to our servers. We have no access to your files or data.

Frequently Asked Questions

Get tool tips & updates

Get weekly tips on free tools, shortcuts & productivity hacks. Confirm your email to subscribe — it only takes a second.

Recommended for you

VS Code

Free

Free code editor with IntelliSense, debugging, and built-in Git.

Download

Figma

Collaborative interface design tool for teams.

Design

Hostinger

Deal

Fast, affordable web hosting with free domain and SSL.

Host Site

Udemy

Deal

Affordable online courses to learn job-ready technical skills.

Learn

Affiliate links — we may earn a commission at no cost to you

UUID Generator: What It Is

Related Tools

Timestamp Converter

Convert Unix timestamps to dates and back

Use tool

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Format and beautify JSON data instantly

Use tool

Base64 Encoder

Encode text or files to Base64

Use tool

UUID Generator

About this tool

How to use

Pros & Cons

Pros

Cons

Features

Privacy

Frequently Asked Questions

Get tool tips & updates

Recommended for you

VS Code

Figma

Hostinger

Udemy

Related Articles

Related Tools

Timestamp Converter

JSON Formatter

Base64 Encoder

UUID Generator

About this tool

How to use

Pros & Cons

Pros

Cons

Features

Privacy

Frequently Asked Questions

Get tool tips & updates

Recommended for you

VS Code

Figma

Hostinger

Udemy

Related Articles

Related Tools

Timestamp Converter

JSON Formatter

Base64 Encoder