UUID Generator
Generate random version 4 UUIDs, one or up to 100 at a time, using your browser's secure random generator.
Processed in your browser. Nothing you enter is uploaded.
Generated with crypto.randomUUID(), the browser's secure random generator.
How to use it
- Choose how many UUIDs you need (1 to 100).
- Choose uppercase and hyphen options.
- Press Generate for a fresh set.
- Copy them or download a text file.
Example
- A generated value looks like
- Input:Generate 1
- Result:f47ac10b-58cc-4372-a567-0e02b2c3d479 (a different random value each time)
What does UUID Generator do?
UUID Generator creates random version 4 UUIDs, one at a time or up to a hundred together, with uppercase and hyphen options.
How does UUID Generator work?
Each UUID comes from the browser's crypto.randomUUID(), a cryptographically secure source. Generation happens in your browser.
Is my data uploaded?
No. The UUIDs are created in your browser and are not sent or stored anywhere.
Which formats and inputs does UUID Generator support?
Inputs: How many UUIDs to generate; Uppercase and hyphen options. Output: A list of version 4 UUIDs to copy or download.
What are the limits and limitations of UUID Generator?
Limits: UUIDs per run 1 to 100. It needs a browser with crypto.randomUUID() and a secure (HTTPS) page, and otherwise explains why it cannot run.
More questions
Are the UUIDs secure?
They come from crypto.randomUUID(), which uses the browser's cryptographically secure random source.
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