UUID Generator

Generate UUIDs instantly in your browser — no server, no tracking

Output

Generated UUIDs will appear here…

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit value standardized by RFC 4122. UUIDs are widely used in databases, distributed systems, and APIs to assign unique identifiers to records without a central authority — no coordination between servers required.

How to Use

  1. 1Select the UUID version (currently UUID v4 is supported).
  2. 2Enter a quantity between 1 and 1000.
  3. 3Click Generate — UUIDs are created instantly in your browser.
  4. 4Copy individual UUIDs using the copy button next to each one.
  5. 5Use Copy All to copy every UUID, or Download to save them as uuids.txt.

100% Private & Secure

All UUIDs are generated using crypto.randomUUID() — a cryptographically secure API built into every modern browser. No data ever leaves your device. No network requests are made. Your UUIDs are yours alone.

Frequently Asked Questions

A UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify objects in computer systems. They are standardized by RFC 4122 and are used in databases, distributed systems, and APIs.

UUID v4 generates random UUIDs using cryptographically secure random numbers. They have no inherent ordering or meaning, making them ideal for IDs that must not reveal any information about when or where they were created.

Yes. UUIDs are generated using the browser's built-in crypto.randomUUID() API, which uses a cryptographically secure pseudo-random number generator (CSPRNG). No data is sent to any server.

Yes. Enter a quantity between 1 and 1000, then click Generate. All UUIDs are generated instantly in your browser. You can copy them individually or download the entire list as a .txt file.

UUID v4 uses 122 bits of randomness, giving 2^122 possible values. The probability of generating a duplicate UUID is astronomically low — effectively zero for any practical use case.