UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. Used in databases, APIs, and distributed systems to uniquely identify resources.

What is the difference between UUID v1 and v4?

UUID v1 is generated from the current timestamp and MAC address. UUID v4 is randomly generated and is the most commonly used version for security.

Is my data sent to a server?

No. All UUIDs are generated locally in your browser using JavaScript. Nothing is sent externally.

🔑

uuid-generator,

Bulk UUID Maker

WebCrypto randoms forged inside the browser.

✨

Crypto Safe

Browser random API.

⚡

Bulk

1-1000 generation.

🚀

v7 Sortable

Time-sorted specs.

Count

Version

Hyphens

about,

About

Zero network UUID drops.

how to use,

Use

STEP 1

Quantity

Dial it in.

STEP 2

Spec

Select the standard.

STEP 3

Copy

Grab your keys.

glossary,

Glossary

v4: Pure pseudo randomness.
v7: Epoch time combined with randomness.
Hyphenless: Dense string.

faq,

FAQ

Q.Conflicts?: Statistically impossible.
Q.Private?: 100% offline.

use cases,

Cases

🔑 Data

Primary keys for testing.

🔧 Mocks

Mocking sessions.

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