UUID Generator: Random Version 4 UUIDs
Generate random version 4 UUIDs in your browser. Make one or up to 50 at once, with optional uppercase and no dashes.
Choose how many you need and press Generate. They are created by your browser’s secure random generator, so nothing is sent to this site.
Frequently asked questions
- What is a UUID?
- A 128-bit identifier written as 32 hex digits in five groups, such as 123e4567-e89b-42d3-a456-426614174000.
- Can two UUIDs be the same?
- A random version 4 UUID has 122 random bits, so a repeat is extremely unlikely in practice.
- Is a UUID a good secret?
- Not on its own. Use it as an ID, and use a proper token or the password generator for secrets.
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