UUID Generator
Generate random UUIDs (v4) instantly. Perfect for database keys, API tokens, and unique identifiers.
About This Free Online UUID Generator
Generate random UUID v4 (Universally Unique Identifier) strings instantly. UUIDs are 128-bit identifiers that are practically guaranteed to be unique across space and time. They are widely used as database primary keys, API tokens, session identifiers, and anywhere you need a unique identifier without a central authority.
Features of Our UUID Generator
- Generate UUID v4 (random) identifiers
- Generate 1 to 100 UUIDs at once
- Copy all UUIDs to clipboard
- Download UUIDs as a text file
- 100% private — browser-only generation
How to Use the UUID Generator
Using this tool is simple and requires no signup or registration. Follow these steps:
- Set how many UUIDs you want to generate (1-100).
- Click Generate to create the UUIDs.
- Click Copy to copy all UUIDs or Download to save as a file.
Frequently Asked Questions About UUID Generator
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier formatted as 8-4-4-4-12 hexadecimal digits, e.g., 550e8400-e29b-41d4-a716-446655440000. UUID v4 uses random numbers and has 2^122 possible values.
Are UUID v4 truly unique?
UUID v4 has approximately 5.3 × 10^36 possible values. The probability of generating a duplicate is astronomically small — you would need to generate billions of UUIDs per second for centuries to have a meaningful chance of collision.
Why Choose Text Toolbox?
Text Toolbox provides free, private, and instant online text tools. Unlike other text utility websites that require signup accounts or send your data to servers, all our tools process your text entirely in your browser. This means your content never leaves your device — we cannot see it, store it, or share it. Our tools are fast, lightweight, and work on any device with a modern web browser.