UUID Generator
Generate random UUID v4 identifiers instantly in your browser.
How to Use the UUID Generator
1
Set the Count
Enter a number between 1 and 100 to specify how many UUIDs you need.
2
Generate UUIDs
Click the Generate button to create random UUID v4 identifiers.
3
Copy Results
Use Copy All to copy all generated UUIDs to your clipboard at once.
Frequently Asked Questions
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. It is typically formatted as 32 hexadecimal digits displayed in five groups separated by hyphens.
UUID v4 is a version of UUID generated from random or pseudo-random numbers. The version digit (the 13th character) is always '4', making it the most commonly used variant for generating unique identifiers.
UUID v4 has 122 bits of randomness, giving approximately 5.3×10^36 possible values. The probability of collision is astronomically low — far less than 1 in a billion even when generating trillions of UUIDs.
Yes, this UUID generator is completely free to use. All UUIDs are generated locally in your browser using crypto.randomUUID or cryptographically secure random number generation — no data is sent to any server.
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