UUID Generator
Generate UUID v1, v4 and v5 online for free. Create random universally unique identifiers instantly.
關於此工具
Generate UUIDs (Universally Unique Identifiers) in v1, v4, and v5 formats. All generation is done locally in your browser.
使用方法
Select Version
Choose UUID version (v1 time-based, v4 random, v5 name-based).
Generate
Click Generate to create one or more UUIDs.
Copy
Copy UUIDs to use in your application.
使用場景
Database IDs
Generate unique IDs for database records and distributed systems.
常見問題
Are UUIDs truly unique?
UUID v4 has 122 bits of randomness, making collisions astronomically unlikely.