# Cyberduck

A free, open-source (GPL) file transfer client for FTP, SFTP, WebDAV, S3, and most major cloud storage providers — from iterate GmbH.

- **Category:** [Utilities](https://notchlist.vercel.app/category/utilities/)
- **Price:** Free
- **Open source:** yes
- **Official site:** https://cyberduck.io/
- **Available via:** Homebrew, Direct, Mac App Store
- **Requirements:** No specific minimum macOS version is published on the project site.
- **Maker:** iterate GmbH

## Kitsmith's take

A long-running, broad-protocol alternative to a dedicated sync client: it connects to FTP, SFTP, WebDAV, S3, Azure, Backblaze B2, Google Cloud Storage, Google Drive, OneDrive, Dropbox, Box, and several enterprise file-sharing platforms through one Finder-like browser window, plus optional Cryptomator client-side encryption for any of them. It’s a browse-and-transfer tool rather than continuous background sync — closer to an FTP client with cloud support bolted on than to Dropbox. Free and GPL-licensed, maintained on GitHub by iterate GmbH, a Swiss software company that also makes the paid Mountain Duck (mounts the same services as a local disk) and Cyberduck CLI.

## Features

- **Broad protocol and cloud support:** FTP, SFTP, WebDAV, S3, Azure, Backblaze B2, Google Cloud Storage/Drive, OneDrive, Dropbox, Box, and Nextcloud/ownCloud, among others.
- **Cryptomator integration:** Client-side encrypted vaults that work on top of any connected server or cloud storage.
- **Finder-style browsing:** Quick Look previews, drag-and-drop transfers, and bookmarks organized like the macOS Finder.

## FAQ

**Is Cyberduck free?**

Yes — free and open source under the GPL license, with no paid tier.

**Does Cyberduck sync files continuously in the background?**

No — it’s a browse-and-transfer client, not a continuous background sync tool. The same company’s paid Mountain Duck mounts cloud storage as a local disk instead.

**Who makes Cyberduck?**

iterate GmbH, a Swiss software company that also makes Mountain Duck and Cyberduck CLI.


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Hand-verified listing on Kitsmith: https://notchlist.vercel.app/apps/cyberduck/