Nil UUID
00000000-0000-0000-0000-000000000000
UUID 生成・验证工具｜支持 v4・v7
使用安全随机数批量生成 UUID v4 和 v7，并在浏览器中进行格式转换、复制、保存和版本验证的免费工具。
Generate UUID
You can generate up to 10,000 UUID v4 or UUID v7 that can be easily arranged in chronological order.
生成结果
You can copy and save the bulk output, or copy UUIDs individually from the list.
- 生成数量
- 0 项
- 版本
- —
- Duplication
- 0 项
- processing time
- 0 ms
individual copy
Validate UUID
By pasting UUIDs separated by line breaks, spaces, and commas, you can check the format, version, variant, and duplicates.
- Input
- 0 项
- 有效
- 0 项
- 无效
- 0 项
- Duplication
- 0 项
- UUID v4
- 0 项
- UUID v7
- 0 项
| Input | Additional information for this feature. | Additional information for this feature. | Version | Variant | v7 generation date and time | 操作 |
|---|
Additional information: UUID
You can copy the Nil UUID and Max UUID defined in RFC 9562.
Max UUID
ffffffff-ffff-ffff-ffff-ffffffffffff
关于此工具
Generate and verify UUIDs for use in databases, APIs, test data, and distributed systems without installation.
支持的功能
- UUID v4 using cryptographically secure random numbers
- UUID v7 sorted by Unix time
- Generate up to 10,000 items, convert format, verify, and check for duplicates
- TXT/CSV/JSON saving and output for SQL/JavaScript
使用方法
- Select the version, number of items, notation, and output format.
- Generate UUIDs and copy them in bulk or individually.
- Paste the existing UUID into the verification field and check the contents.
限制事项
- UUID is an identifier that ensures uniqueness with a high probability, and we do not reserve issued IDs or confirm their existence.
- The date and time of UUID v7 can be read from the Unix time included in the identifier, so use v4 if you want to keep the generation time secret.
- Although it does not support the generation of UUID v1, v3, v5, v6, and v8, it is possible to verify the format and version.
Shortcut: You can generate it with Ctrl + Enter, and copy all the generated results with Ctrl + Shift + C.
关于此工具
You can generate UUIDs and check existing values for use in databases, APIs, and test data without sending input information externally.
支持的功能
- UUID v4 using cryptographically secure random numbers and Unix time-ordered UUID v7
- Batch generation of 1 to 10,000 items, standard/no hyphens/braces/URN format
- TXT/CSV/JSON save, SQL/JavaScript output, Version/Variant/duplicate/v7 time verification
使用方法
- Select the UUID version, number, notation, and output format.
- Generate UUIDs and copy and save them all at once or individually.
- Paste the existing UUID into the verification field and check the Version, Variant, duplicates, and v7 generation date and time.
限制事项
- We do not reserve UUIDs or make duplicate inquiries with issued IDs.
- UUID v7 includes the generation time, so select v4 if you want to hide the time.
- Although v1, v3, v5, v6, and v8 can be verified, they do not support generation.
隐私: 输入内容和处理结果仅在浏览器中处理，不会发送或保存到 Develop Tools 的服务器。