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ENKO

UUID Generator

Generate random UUIDs (v4) and GUIDs instantly. Create unique identifiers for databases, APIs, and applications.

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Generate a hash.Hash Generator

When you need unique identifiers for database rows, API requests, test data, or client - side keys, generating UUIDs manually is not practical and can cause collisions.

Developer ToolsBrowser-basedOpen full guide

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Help and details

How to use

  1. Click 'Generate' to create a new UUID
  2. Choose the number of UUIDs to generate (1 - 100)
  3. Select format (uppercase, lowercase, with/without hyphens)
  4. Copy the generated UUIDs

Privacy and processing

UUIDs are generated entirely in your browser. No data is sent to our servers.

Frequently Asked Questions

What is a UUID?
UUID (Universally Unique Identifier) is a 128 - bit identifier that is practically unique across space and time. It's used to identify records in databases, API requests, and more.
What's the difference between UUID and GUID?
They're essentially the same thing. UUID is the standard term, while GUID (Globally Unique Identifier) is Microsoft's terminology. Both refer to the same 128 - bit format.
How unique are these UUIDs?
UUIDs are cryptographically random. The probability of generating the same UUID twice is astronomically low (1 in 2^122), making collisions virtually impossible.
What UUID version does this generate?
We generate UUID version 4 (random), which is the most commonly used version. All bytes except version and variant bits are random.
Can I generate multiple UUIDs at once?
Yes, you can generate up to 100 UUIDs at a time with a single click. Perfect for bulk operations.
Is my data private?
Yes. UUIDs are generated entirely in your browser using cryptographically secure random numbers. Nothing is sent to our servers.
Can I customize the format?
Yes, you can choose uppercase or lowercase letters, and include or exclude hyphens based on your needs.
Are these UUIDs secure for tokens?
Yes, we use cryptographically secure random number generation (crypto.getRandomValues). However, for authentication tokens, consider using dedicated token libraries.