Accounts Storage Studio doesn't connect

Storage Studio connects only the account types listed in Add Account. MEGA and Proton Drive aren't among them, because connecting them safely isn't possible today, and Google Photos can't be added as a new account.

Last updated 1 October 2026Markdown

Storage Studio connects only the account types you see in the Add Account list. Services that aren't on the list — including MEGA and Proton Drive — can't be added, and there's no hidden setting that adds them. This page explains the main ones and what you can do instead.

What you can connect

The Add Account list offers:

Google Drive, Dropbox, OneDrive and Box, which you sign in to through your browser;
Bucket Storage, for Amazon S3 and other S3-compatible services;
SFTP and FTP servers;
iCloud Drive (another Apple ID), which also brings that Apple ID's Photos library, read-only.

Google Photos is in the list too, but choosing it explains why it can't be added — see below.

MEGA

Connecting MEGA would mean signing in without two-factor sign-in, so you'd have to turn that protection off on your MEGA account. We won't ask you to weaken your account's security to use Storage Studio, so MEGA isn't offered.

Proton Drive

The way Storage Studio would connect to Proton Drive is still experimental, so it isn't offered. A sync or a move can change or remove files, and that's not something to trust to an experimental connection.

Google Photos

Since March 2025 Google lets an app see only the photos that app uploaded itself, so a new Google Photos connection would show an empty library. You can still bring your library across with Google Takeout — see Google Photos: what's possible and the Takeout route.

Other services

Any service that isn't in the Add Account list can't be connected directly. Two things often help:

The service's own Mac app. Many services have a Mac app that keeps a folder on your Mac. That folder is an ordinary folder to Storage Studio, so you can copy from it or to it with Data Transfers, like any other folder.
An export. If the service can export your files to one of the accounts above, connect that account and copy the export where you want it — the same idea as the Google Takeout route.

Your own Mac's iCloud Drive

You don't need to add the iCloud Drive that's signed in to your Mac — Storage Studio can already reach it through the iCloud Drive folder on your Mac. The iCloud Drive (another Apple ID) type is only for a different Apple ID. See iCloud Drive for another Apple ID and Storage Studio's cloud accounts and iCloud Drive.

cloud accountsmegaproton drivegoogle photos