Gerador de UUID: Crie Identificadores Únicos Grátis
Gere códigos exclusivos para seu negócio, pedidos e transações financeiras.
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Gere UUIDs com nossa ferramenta online gratuita. Obtenha resultados instantâneos com explicações úteis e dicas para melhor compreensão.
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Gerador de UUID
Gere UUIDs com nossa ferramenta online gratuita. Obtenha resultados instantâneos com explicações úteis e dicas para melhor compreensão.
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Resultados
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O que é um UUID Generator?
A UUID Generator creates universally unique identifiers for databases, APIs, and software development. Supports multiple UUID versions.
Como usar
Select the UUID version and quantity needed. Click generate and copy your unique identifiers.
Perguntas frequentes
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. When generated according to the standard methods, UUIDs are practically unique, meaning the chance of the same identifier being generated twice is negligible.
What is UUID Version 4?
UUID Version 4 is a random UUID generated using random or pseudo-random numbers. It is the most common version used today because it does not require a central authority or unique MAC address to generate, ensuring both privacy and high uniqueness.
Is a UUID truly unique?
While absolute uniqueness is mathematically impossible, the probability of a collision (generating the same UUID twice) for Version 4 is extremely low. You would need to generate trillions of UUIDs before having a significant chance of a duplicate.
What is the standard format of a UUID?
A standard UUID is represented as a 32-character hexadecimal string, displayed in five groups separated by hyphens. The format looks like 8-4-4-4-12 (e.g., 123e4567-e89b-12d3-a456-426614174000).
Does it matter if I use uppercase or lowercase?
No, UUIDs are case-insensitive. 'A' and 'a' represent the same value in hexadecimal. However, it is standard convention to output them in lowercase.
Can I remove the hyphens from the UUID?
Yes, the hyphens are purely for human readability and do not affect the underlying value. You can use this calculator to generate a UUID without hyphens if required for URLs or database storage.
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