Tool Details
UUID Generator
LiveDeveloper UtilitiesUUID Generator is a free, instant tool for developers who need universally unique identifiers. Generate single or bulk UUID v4 strings with one click, copy individual UUIDs or the entire batch, and choose your preferred format (standard, uppercase, no dashes). Uses the Web Crypto API for cryptographically secure random generation. Everything runs client-side — no data leaves your browser.
Key Features
FAQs
What does the UUID Generator do?
It generates random UUID version 4 (v4) strings — the most widely used UUID format. You can generate a single UUID or up to 100 UUIDs at once, then copy them to your clipboard with one click.
Are the generated UUIDs cryptographically secure?
Yes. The tool uses the Web Crypto API (crypto.randomUUID or crypto.getRandomValues) to ensure all generated UUIDs are cryptographically secure random values.
What is the difference between UUID and GUID?
UUID (Universally Unique Identifier) and GUID (Globally Unique Identifier) are essentially the same thing. UUID is the standard term used in RFCs and most programming languages, while GUID is commonly used in Microsoft ecosystems. This tool generates standard UUID v4 format.
Can I generate UUIDs in bulk?
Yes. You can generate 1 to 100 UUIDs at a time using the quantity selector. All generated UUIDs are shown in a list and can be copied individually or as a full batch.
Is my data safe?
Yes. All UUID generation happens 100% in your browser using the Web Crypto API. No data is ever sent to a server or stored anywhere.
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