UUID Generator
DeveloperGenerate random UUID v4 identifiers in one click and copy several at once. Cryptographically random and completely client-side.
c192cbd3-230f-43f9-bce0-b11e3eb38c2a6ab57b1a-b442-4dd1-a778-fc4db6c8bf6ee4ff724a-c4ed-44d0-95b5-cea797053597e12328e8-f64f-40d2-afed-0ae5bf2efff1c6a81e7b-ad9d-4be4-bd05-396503b15711UUID v4 values are generated with your browser's cryptographic random source. Every value is considered globally unique; the chance of a duplicate is practically zero.
What is a UUID?
A UUID (universally unique identifier) is a standard 128-bit identifier written in 36 characters, e.g. 123e4567-e89b-12d3-a456-426614174000. Version 4 is produced randomly, making collisions practically impossible across distributed systems, databases and APIs.
When should you use it?
- Database primary keys and record identifiers.
- API trace, session and transaction numbers.
- Test data, form fields and temporary file names.
- Apps where many servers create records at the same time.
Is my data safe?
Yes. Values are generated on your device using the browser's cryptographic random source; nothing is sent anywhere. The identifiers are entirely yours.
FAQ
- Are UUID and GUID the same? Yes — GUID is Microsoft's name for a UUID.
- Can identifiers be changed? Every click produces fresh random values; generated lists are yours once copied.
- How many values can I generate? As many as you like in a single batch.
Frequently Asked Questions
What is UUID Generator?
Generates random UUID v4 (GUID) identifiers in one click; copy several at once.
How do I use UUID Generator?
Type or paste your data into the field on this page and press the button. The result is calculated instantly in your browser — nothing is uploaded.
Is UUID Generator free?
Yes, UUID Generator is completely free. No signup, no downloads and no usage limits.
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