[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Type](https://evolu.dev/docs/api-reference/common/Type) › uint8ArrayToBase64

```ts
function uint8ArrayToBase64(bytes: Uint8Array): string & Brand<"Base64">;
```

Defined in: [packages/common/src/Type.ts:8841](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/common/src/Type.ts#L8841)

Converts bytes to [Base64](https://evolu.dev/docs/api-reference/common/Type/variables/Base64).

### Example

```ts
import { assertEqual, uint8ArrayToBase64 } from "@evolu/common";

assertEqual(uint8ArrayToBase64(new Uint8Array([0, 1, 2, 255])), "AAEC/w==");
```