Mountain Duck Alternatives in 2026

What you are actually replacing

Updated 24 September 2026. Mountain Duck 5 is not the product most comparison pages describe. Version 5.3.2.29785 is dated 25 August 2026, requires macOS 13 or later or Windows 10 or later, and no longer installs a filesystem driver. Its own description of the change is the important part: "the new Integrated connect mode syncing with File Provider (macOS) and Cloud Files (Windows) APIs. No device driver installation or network mount required." Installation needs no admin privileges, and files sync down on open with an offline cache, in the style of iCloud Drive or OneDrive.

So the three complaints that used to drive people away — a kernel extension, a network mount that stalled, and admin rights — are largely gone. Three reasons to look elsewhere survive:

• Linux. There is no Mountain Duck build for it, and there is no sign of one.
• Price you cannot see. Licensing is per seat and tied to one major version: a key works on any number of computers as long as it is the same person, and the next major release is a discounted repurchase rather than an entitlement. The store page will not quote you a figure until you pick a user count and a currency, which makes casual comparison impossible.
• Sync semantics. File Provider and Cloud Files are sync engines. They are excellent when you want a folder that behaves like a local folder, and they are the wrong abstraction when you want to see a bucket, select 4,000 objects and watch a transfer queue.

Everything below was checked in September 2026 against each vendor's own pages.

The five alternatives

AnyStorage: a bucket window with an optional mount

AnyStorage 0.2.24 shipped on 23 September 2026 for macOS 11 or newer, Windows 10 or newer and Linux — an amd64 AppImage or a .deb for Ubuntu 20.04 and later, plus brew install --cask kilerd/tap/anystorage on macOS. It inverts Mountain Duck's priorities: the workspace is the product and the mount is a feature. Remote folders and buckets open in tabs, transfers land in one area with progress and history, credentials are stored encrypted on the machine, and there is no account to create.

The mount works without a filesystem driver, which is the same claim Mountain Duck 5 now makes but by a different route: the app runs a WebDAV server on http://127.0.0.1:3211 and you mount it with Finder, File Explorer, GNOME Files, Dolphin or davfs2. No macFUSE, no WinFsp, no reduced-security boot on Apple silicon. More than 20 connection types are supported, and Cloudflare R2, Backblaze B2, Google Cloud Storage, Azure Blob, Alibaba Cloud OSS and Tencent Cloud COS each get their own type rather than a hand-assembled S3 endpoint — R2 in particular is absent from Mountain Duck's protocol list. The free tier allows two connections, permits commercial use and serves WebDAV read-only; Pro removes the connection cap, makes the server read-write and adds search, preview, bulk operations and drag-and-drop upload.

The concrete limitation: no offline sync. Mountain Duck's smart synchronisation, background uploads and "always keep offline" selections have no equivalent here — a mount backed by a loopback WebDAV server is a live view, not a cached copy. There is also no CLI and no arm64 Linux build, and two connections is a real cap on the free tier. For the platform-specific view, see S3 client for Linux or S3 client for Mac.

ExpanDrive: the free one that mounts on all three desktops

ExpanDrive is the direct like-for-like swap, and since April 2025 it is free for personal use. Files.com acquired it in January 2024 and relaunched it with a licensing model its announcement states plainly: "every cloud service, every operating system, no trial timer, no degraded free tier. Forever." That covers solo users, households, freelancers and teams up to ten people across macOS, Windows and Linux, each with a signed installer. Past ten users you step up to Business at "a flat $29/month for the whole team," which adds Server Edition, a web management console and priority support. Integrations run Amazon S3, Backblaze B2, Box, Dropbox, FTP, Google Cloud Storage, Google Drive, IDrive e2, Nextcloud, OneDrive, OneDrive for Business, SFTP, SharePoint, Wasabi and WebDAV.

If your objection to Mountain Duck was the price, this is where the conversation ends for most individuals. It mounts, it runs on Linux, and it costs nothing below eleven people.

The concrete limitation: the client is now owned by a storage vendor that sells a competing service, and the site navigation includes an "Upgrading to Files.com" page. That is a legitimate funnel, not a trap, but it is a reason some teams prefer a client with no service behind it. Cloudflare R2 is not in the integration list. The ExpanDrive alternatives page goes deeper.

CloudMounter: the paid mount with a two-tier price list

CloudMounter, from Electronic Team, is the other commercial mount tool aimed at the same buyer. Version 4.18 for macOS was released on 18 June 2026 and needs macOS 12.4 or later; version 3.8.2156 for Windows was released on 16 September 2026 and supports Windows 7 SP1 through Windows 11. macOS connects Dropbox, OneDrive, Amazon S3, Google Drive, WebDAV, SFTP, FTP, pCloud, Box, Backblaze, MEGA and OpenStack; the Windows build drops pCloud, Backblaze and OpenStack.

Unlike Mountain Duck, it does publish prices, and they differ sharply by platform. On macOS, Personal for one Mac is $74 lifetime or $29 a year and is marked "personal use only"; Team for five Macs is $249 lifetime or $99 a year with business use allowed. On Windows it is a straight one-time purchase: $29.99 for one PC, $99.99 for five. Its own FAQ confirms the split — "currently, the Windows version is sold as a one-time purchase, while macOS offers both."

The concrete limitation: no Linux build, so it solves none of Mountain Duck's platform gap, and the free mode exists only on Windows — after a 14-day Pro trial, "the Free version provides full access to one account for Google Drive, Dropbox, and OneDrive, while additional accounts and services are read-only." If the free part is what you are after, the free CloudMounter alternatives page starts from that requirement.

Cyberduck: the same company, free, and it does not mount

Mountain Duck's own free sibling deserves a line here, because a surprising number of people buy a mount when they wanted a window. Cyberduck 9.5.4 was released on 25 August 2026, is GPL, costs nothing, and covers FTP, SFTP, WebDAV, SMB, Amazon S3, OpenStack Swift, Backblaze B2, Azure, OneDrive, Google Drive and Dropbox. Most of Mountain Duck's protocol documentation actually lives on cyberduck.io, which tells you how closely the two share a codebase.

If your work is "open the bucket, look at the objects, upload these, download those," Cyberduck does it for free on macOS and Windows and you can stop reading.

The concrete limitation: it does not mount at all, there is no Linux desktop build, and it shows a donation prompt — removable for a contribution of at least 10 USD, which returns a registration key in Cyberduck's own words. The Cyberduck alternatives page compares the wider field if that is your starting point instead.

rclone: free, scriptable, and the most work

rclone is free under the MIT licence, runs on Linux, Windows, macOS and FreeBSD, and "over 70 cloud storage products support rclone" — including Cloudflare R2, which Mountain Duck does not list. rclone mount produces the drive behaviour on all four platforms, and for scheduled syncs nothing else on this page is in the same category.

The concrete limitation: the mount is the part that costs you time. The documentation is explicit that "to run rclone mount on Windows, you will need to download and install WinFsp," and about caching it warns that "without the use of --vfs-cache-mode this can only write files sequentially, it can only seek when reading. This means that many applications won't work with their files on an rclone mount without --vfs-cache-mode writes or --vfs-cache-mode full." That is precisely the class of problem Mountain Duck 5's File Provider rewrite removed. The official web GUI is still described as experimental. See rclone mount alternatives for the graphical options.

Pick by need

• You need Linux: AnyStorage, ExpanDrive or rclone. Mountain Duck, CloudMounter and Cyberduck do not ship a Linux build.
• You want a free mount on macOS or Windows: ExpanDrive, if you are personal use or a team of ten or fewer. It is the only free tier here that is the whole product.
• You want a visible bucket window and a transfer queue: AnyStorage, or Cyberduck if free matters more than mounting.
• You want offline files and background uploads: stay on Mountain Duck. Nothing on this list matches its sync engine, and that is the honest answer.
• You want a fixed, published price: CloudMounter on Windows at $29.99 once is the cheapest paid mount in this comparison.
• You script more than you click: rclone.
• Your buckets are R2, Alibaba Cloud OSS or Tencent Cloud COS: AnyStorage or rclone. See the S3 GUI client page for the wider object-storage picture.

Questions