[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [local‑first/Owner](https://evolu.dev/docs/api-reference/common/local-first/Owner) › ownerIdBytesToOwnerId

```ts
function ownerIdBytesToOwnerId(
  ownerIdBytes: Uint8Array<ArrayBufferLike> &
    Brand<"Length16"> &
    Brand<"IdBytes"> &
    Brand<"OwnerIdBytes">,
): string & Brand<"Id"> & Brand<"OwnerId">;
```

Defined in: [packages/common/src/local-first/Owner.ts:124](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/local-first/Owner.ts#L124)

Converts [OwnerIdBytes](https://evolu.dev/docs/api-reference/common/local-first/Owner/variables/OwnerIdBytes) to [OwnerId](https://evolu.dev/docs/api-reference/common/local-first/Owner/variables/OwnerId).