An open-source FTP client for Windows and Mac OS X


Our rating: 

License: Free (Open source)
Review & Alternatives: Best Free FTP Client
Categories: Networking, FTP Client

Pros & Cons:

Easy-to-use interface, SFTP works fine, performs well for single and small transfers.
Some issues on transfer of multiple files, resume transfer broken.

Our Review:

Cyberduck is an open-source FTP, SFTP, WebDAV and Amazon S3 browser licenced under the GPL with an easy to use interface, integration with external editors and support for many Mac OS X system technologies such as Spotlight, Bonjour, QuickLook and the Keychain.

It also runs on Windows system and I tested this quite extensively under Windows 7.

The app performed fairly well for single, small transfers (less than 100mb) using FTP but had some issues once multiple files (200+) were selected. If the transfer was broken the resume just would not function, and files would be re-uploaded from the start again.

The interface I found a bit daunting compared to the split screen apps as you would have to be very careful when selecting transfer folders to be sure they went into the right places.

SFTP worked fine as well, although with the same problems as on FTP concerning resume of uploads/transfers. WebDAV and Amazon S3 performance was quite good, no problems were experienced here.

Cyberduck was reviewed by on


At the time of the first review they were on version 4.9.3

Now they're on build

I use it and the only issue I saw with it (may be fixed now they're on version build 7+) is that you had to create a bookmark before you could connect.

What I would like to see is for it to behave slightly more like the Windows filesystem in some respects. Maybe a shell API has to be created.