CloudMounter review

CloudMounter 4.18 for Mac brings Google Drive, Dropbox, OneDrive, Amazon S3, SFTP and other online storage into Finder as if they were ordinary disks. The result is a cleaner workflow with fewer sync clients and far less local storage use.

CloudMounter review: the short verdict

CloudMounter is one of the most practical tools for Mac users who regularly work with several cloud accounts or remote servers. It does not try to replace Finder. Instead, it extends Finder so your online files appear alongside local and external drives. You can browse folders, open documents, rename files and drag data between services without constantly switching between browser tabs and separate sync applications.

The biggest advantage is that CloudMounter works on demand. Your complete cloud archive does not have to be duplicated on the Mac. Files are downloaded when needed and cached for use, which is especially valuable on a MacBook with limited SSD capacity.

Supported connections

CloudMounter supports the services most people are likely to need:

• Google Drive
• Dropbox
• Microsoft OneDrive
• Amazon S3 and S3-compatible storage
• Box, pCloud, MEGA and Backblaze B2
• FTP, FTPS and SFTP servers
• WebDAV and OpenStack Swift

Multiple accounts can be connected at the same time. That is useful when you separate personal and business storage or manage servers for several clients.

Using CloudMounter on a Mac

Setup is straightforward: choose a service, sign in through its official authorization page and select a name for the mounted drive. The connection then appears in Finder. Day-to-day use feels familiar because standard Finder actions continue to work. Moving data between two clouds is reduced to a drag-and-drop operation rather than a manual download followed by a second upload.

Performance naturally depends on your internet connection and the remote service. Small documents and folders feel responsive, while very large media files still require patience. CloudMounter cannot make remote storage as fast as an internal SSD, but it removes much of the friction around accessing it.

Security and privacy

CloudMounter stores credentials in macOS Keychain and uses the official APIs of supported cloud providers. The developer states that login details are not stored on its own servers. For FTP and WebDAV connections, secure protocols should be preferred whenever the server supports them.

The application also offers client-side cloud encryption. This can protect sensitive files before they are uploaded, but encrypted folders depend on CloudMounter for convenient access. Keep recovery information and passwords somewhere safe; losing them can make encrypted data inaccessible.

How CloudMounter works behind the scenes

CloudMounter creates a filesystem layer between Finder and each remote service. Finder presents the connection as a mounted drive, while CloudMounter translates ordinary file actions—such as listing a folder, opening a document, renaming an item or saving a change—into commands understood by the provider. For Google Drive, Dropbox, OneDrive and other cloud platforms it communicates through the provider’s official API. FTP, SFTP and WebDAV connections use their respective network protocols.

The Mac version can use different mounting technologies. The direct-download edition can work with a supported FUSE implementation when that drive type is selected. CloudMounter also offers a macOS Native Drive type; the Mac App Store edition does not use FUSE because of Apple’s sandboxing restrictions. In either case, Finder is the front end, while CloudMounter handles authentication, directory requests and data transfers in the background.

On-demand files and local cache

CloudMounter initially retrieves folder listings and file metadata rather than synchronizing every file. When you open, edit or copy a remote file, the required data is downloaded into a local cache. Changes are then uploaded to the remote service. This on-demand model is what saves disk space, but it also explains why the first opening of a large file depends on network speed.

Cache lifetime and location can be managed in the app. On macOS 15 or later, the Native Drive mode can move its cache to another APFS-encrypted volume. CloudMounter can also preserve macOS extended attributes where the selected connection and mounting method support them. Offline work relies on locally available cached files; queued changes are synchronized after the connection returns.

Authentication, transfer paths and encryption

OAuth-based cloud services authorize CloudMounter through the provider rather than handing the app a reusable account password. Credentials and connection passwords are kept in macOS Keychain, and secure protocols send them through encrypted connections. A transfer between two remote services is orchestrated by CloudMounter: data is streamed through the Mac as needed instead of first being stored permanently in a normal local sync folder.

Optional client-side encryption is separate from transport encryption. CloudMounter can encrypt file contents with AES-256 before upload, with an option to protect filenames as well. The cloud provider then stores ciphertext rather than readable files. This improves privacy, but the encrypted data is not conveniently usable through the provider’s website or another ordinary client; CloudMounter and the correct password are required to decrypt it.

Advantages and drawbacks

Who should buy CloudMounter?

CloudMounter is most useful for people who manage several cloud services, web servers or S3 buckets and want them available from one familiar interface. It is also a strong choice for MacBook users who cannot afford to keep large synchronized folders on the internal drive. If you use only one cloud provider and its native app already meets your needs, CloudMounter is less essential.

Remember that mounted cloud storage is not a backup by itself. Deleted or damaged files may be synchronized to the remote service as well. Important data still needs an independent backup strategy.

Compatibility and current version

At the time of this review, the current Mac release is CloudMounter 4.18, released on 18 June 2026. It requires macOS 12.4 or later. The developer offers a seven-day trial with the yearly subscription, allowing you to test your own cloud and server connections before committing.

Final verdict

CloudMounter succeeds because it solves a real Mac workflow problem without demanding a new way of working. Finder remains the centre of the experience, while online storage becomes easier to browse and manage. Its combination of broad service support, low local-storage use and direct cross-cloud transfers makes it an excellent utility for multi-cloud users.

MacAppCritic rating: 8.5/10. Recommended for anyone who regularly works across several cloud services or remote servers.