UUID v1-v7, ULID, KSUID, CUID2, and NanoID Generator Online

使用该工具

Local generation in your browser, no login and no mandatory backend.

ID type

UUID version

Amount

UUID with versions v1, v3, v4, v5, v6, and v7.

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You can generate UUID v1, v3, v4, v5, v6, and v7, plus NanoID, ULID, KSUID, CUID2, and Mongo-style ObjectId.

This gives flexibility for API design, database keys, event streams, and reproducible deterministic identifiers.

Use UUID v7 for modern time-ordered UUIDs, v3/v5 for deterministic namespace-based IDs, and ULID/KSUID for sortable token-like identifiers.

Batch generation saves time when preparing fixtures, seeds, and mock API responses.

ID generation runs locally in your browser using secure random APIs.

Very short IDs or tiny alphabets can increase collision risk in high volume environments.

Which ID types can I generate here?

UUID v1-v7, NanoID, ULID, KSUID, CUID2, and ObjectId.

Can I generate many IDs at once?

Yes. Set quantity and generate in batches.

Can I customize NanoID alphabet?

Yes. You can define your own alphabet.

Is generation local?

Yes. Processing happens in-browser.

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针对常见用途的快捷入口,使用相同的完整流程。

UUID, ULID, KSUID, CUID2, and NanoID Generator

uuid ulid ksuid cuid2 and nanoid generator online

本页面的工具直接在你的浏览器中运行,不会将输入内容发送到后端服务器。这样可以提升隐私保护并降低延迟。