bun-types
Version:
Type definitions and documentation for Bun, an incredibly fast JavaScript runtime
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text/mdx
title: Generate a UUID
sidebarTitle: Generate UUID
mode: center
Use `crypto.randomUUID()` to generate a UUID v4. This API works in Bun, Node.js, and browsers. It requires no dependencies.
```ts
crypto.randomUUID();
// => "123e4567-e89b-42d3-a456-426614174000"
```
In Bun, you can also use `Bun.randomUUIDv7()` to generate a [UUID v7](https://www.ietf.org/archive/id/draft-peabody-dispatch-new-uuid-format-01.html).
```ts
Bun.randomUUIDv7();
// => "0196a000-bb12-7000-905e-8039f5d5b206"
```
See [Docs > API > Utils](/docs/runtime/utils) for more useful utilities.