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UUID生成

生成一个随机的通用唯一标识符 (UUID v4)。

In software engineering and data management, having a truly unique identifier is essential to prevent data collisions and sync errors. A Universally Unique Identifier (UUID), also known as a GUID, is a 128-bit label used for information in computer systems. Because they have a massive number of possible combinations, you can generate them independently without a central authority and still be confident that no two IDs will ever be the same.

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Click the button above to generate a new unique identifier.

工作原理

The generator follows the RFC 4122 standard, creating a 36-character string (including hyphens) consisting of hexadecimal digits, with specific bits set to indicate Version 4 and the correct variant.

计算公式

122 bits of randomness

Calculation Examples

1. **Sample ID**: 123e4567-e89b-12d3-a456-426614174000.

Why use this tool in your daily life?

Ensure data integrity. This service provides the foundational IDs needed for modern apps and distributed systems, ensuring your data remains distinct and synchronized across the globe.

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