Generate UUID/GUID online

1. Choose a format (simple or code).
2. Click Generate to create UUID/GUID v4 values.
3. Copy or download the results.

Best practices

• Prefer UTC/GUIDs for identifiers, not for secrets.
• Store UUIDs in one consistent format across your system.
• Avoid pasting sensitive data on shared devices.

隐私

部分工具在浏览器内运行。某些功能可能需要服务器处理。