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UUID Generator

Generate random, unique UUID v4 identifiers.

Local Processing

Your input is processed in your browser.

How many UUIDs?

  • f681bdfc-5eb5-4416-a2b6-51d086a1b966
  • db735561-235d-488c-a173-a7cdafc64c69
  • 1a43a89a-91a5-460e-9d3f-8f046a72b3ea
  • 6616ef83-0c83-4621-bc13-06ce5f53f74b
  • ddf13366-182a-43c5-b490-b580bd3b282f

Private by design

Your data is processed directly in your browser. It is not sent to Stay Local Tools servers for processing. Because the work happens on your device, nothing you type here leaves your browser unless you choose to copy or share it yourself.

Note: the website itself still loads normal web files, and may use analytics or ads later. The promise here is about the files and text you put into these tools.

How to Use

  1. Choose how many UUIDs you need.
  2. Click Generate.
  3. Copy one, or Copy All.

What is UUID v4?

A UUID (Universally Unique Identifier) is a 128-bit value, usually written as 32 hexadecimal digits in five groups, like f47ac10b-58cc-4372-a567-0e02b2c3d479. Version 4 UUIDs are built almost entirely from random bits, which is why they can be created instantly, by anyone, without needing to check with a central database first.

Why UUIDs are useful

UUIDs give every record, file, session or object a unique ID without needing a central counter or coordination between systems. They are commonly used as database primary keys, request IDs for tracing, file names, and identifiers in distributed systems where many computers might generate IDs at the same time.

Questions and Answers

A UUID v4 is built from 122 random bits, which gives an astronomically large number of possible values — far more than could ever realistically repeat by chance. For practical purposes, each one generated here can be treated as unique.

Other Languages

Español

Generador UUID

Genera identificadores UUID v4 aleatorios y seguros con un solo clic. El valor se genera directamente en tu navegador y no se sube a los servidores de Stay Local Tools para el procesamiento.

Preguntas frecuentes

Un UUID v4 se construye con 122 bits aleatorios, lo que da una cantidad enorme de valores posibles. En la práctica, cada uno generado aquí puede tratarse como único.

Português (Brasil)

Gerador UUID

Gere identificadores UUID v4 aleatórios e seguros com um clique. O valor é gerado diretamente no navegador e não é enviado aos servidores do Stay Local Tools para processamento.

Perguntas frequentes

Um UUID v4 é construído com 122 bits aleatórios, o que dá uma quantidade enorme de valores possíveis. Na prática, cada um gerado aqui pode ser tratado como único.

한국어

UUID 생성기

클릭 한 번으로 안전하고 무작위한 UUID v4 식별자를 생성할 수 있습니다. 값은 브라우저에서 직접 생성되며 Stay Local Tools 서버에 업로드되지 않습니다.

자주 묻는 질문

UUID v4는 122비트의 무작위 값으로 만들어져 사실상 겹칠 가능성이 거의 없을 만큼 많은 경우의 수를 가집니다. 실사용 관점에서는 고유하다고 볼 수 있습니다.