# Read a JSON file (/docs/guides/read-file/json)

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Related: [Read a file to an ArrayBuffer](/docs/guides/read-file/arraybuffer.md), [Read a file to a Buffer](/docs/guides/read-file/buffer.md), [Check if a file exists](/docs/guides/read-file/exists.md), [Get the MIME type of a file](/docs/guides/read-file/mime.md), [Read a file as a ReadableStream](/docs/guides/read-file/stream.md), [Read a file as a string](/docs/guides/read-file/string.md)

The `Bun.file()` function accepts a path and returns a `BunFile` instance. `BunFile` extends `Blob`, so you can read the file lazily in a variety of formats. Use `.json()` to read and parse the contents of a `.json` file as a plain object.

Bun sets the MIME type of the `BunFile` accordingly.

```ts index.ts icon="/icons/typescript.svg"
const path = "/path/to/package.json";
const file = Bun.file(path);

const contents = await file.json();
// { name: "my-package" }

file.type; // => "application/json;charset=utf-8";
```