---
url: /reference/api/TypeAlias.Format.md
---
# Type Alias: Format

```ts
type Format = ModuleFormat
```

Defined in: [src/config/types.ts:59](https://github.com/rolldown/tsdown/blob/52b59cc0d5a8a6a1dc0e3e5c01ccb8f79a78df2c/src/config/types.ts#L59)