Kitsmith / Sync & Cloud
MacSync & Cloud
5 hand-verified sync & cloud for Mac.
Syncthing and Cyberduck are the two free, open-source options, but solve different jobs. Syncthing connects your own devices directly over an encrypted connection with no company-run server and no account at all — free with no cloud storage tier to buy, but also no browser-based web access to your files, since it only syncs between devices you control; development is stewarded by the nonprofit Syncthing Foundation. Cyberduck is a browse-and-transfer client rather than continuous background sync, connecting to FTP, SFTP, WebDAV, S3, and most major cloud providers (Dropbox, OneDrive, Google Drive, and more) through one Finder-like window, free and GPL-licensed from Swiss company iterate GmbH.
Desktop App for Dropbox is an independent, third-party Dropbox client, not the official app — browsing and search are free, with uploads, sharing, offline files, and on-device Apple Intelligence tools (summaries, Smart Rename) unlocked by a $39.99 lifetime, $24.99/yr, or $4.99/mo purchase; the developer states it isn’t affiliated with or endorsed by Dropbox Inc. FTP Mounter Lite and FileDrop Lite are both free, single-purpose Finder utilities from the same solo developer (兰桂 吴, Langui.net): FTP Mounter Lite mounts a remote FTP/SFTP/WebDAV server as a real Finder volume (one drive at a time in the free Lite version), while FileDrop Lite sends a file to another Mac in one step from Finder’s Share menu (one file at a time, free).
All 5 apps
No apps match those filters.
FTP Mounter Lite
Free (one drive at a time; the separate full version removes that limit)Mount an FTP, SFTP, or WebDAV server as a local drive in Finder — free, one drive at a time.
FileDrop Lite
Free (one file at a time; the separate full version removes that limit)Send a file to another Mac in one step from Finder’s Share menu — free, one file at a time, over FileDrop, SFTP, or FTP.
Desktop App for Dropbox
Free (browse, search, sort); Lifetime $39.99 one-time, Yearly $24.99, or Monthly $4.99 to unlock uploads, sharing, offline files, and AI toolsA native, Finder-style Dropbox client with offline files, on-device AI summaries, and document creation — sign in with your existing Dropbox account.
Syncthing
FreeFree, open-source, peer-to-peer continuous file sync — no central server, no account, your data stays on your own devices.
Cyberduck
FreeA free, open-source (GPL) file transfer client for FTP, SFTP, WebDAV, S3, and most major cloud storage providers — from iterate GmbH.
The verdict
We haven't singled out a top pick here yet — every one of the 5 is hand-verified, so start wherever your job description points you. 4 of the 5 are free, and 2 are open source.
Mac sync & cloud — questions people ask
Is there a free file-sync tool for Mac with no cloud subscription?
Syncthing is free and open source, syncing directly between your own devices with no company-run server or account. Cyberduck is also free and open source, though it’s a browse-and-transfer client rather than continuous background sync.
Is Desktop App for Dropbox the official Dropbox client?
No — it’s an independent third-party app built on the Dropbox API. Browsing and search are free; uploads, sharing, and its on-device AI tools need a paid unlock ($39.99 lifetime, $24.99/yr, or $4.99/mo).
Can I mount an FTP or SFTP server as a regular Finder drive?
Yes — FTP Mounter Lite mounts FTP, SFTP, or WebDAV servers as a Finder volume you can browse and edit directly, free for one mounted drive at a time.
What’s the quickest way to send a file to another Mac on the same network?
FileDrop Lite adds a Share → FileDrop option in Finder’s right-click menu that sends a file automatically, free for one file at a time.