> For the complete documentation index, see [llms.txt](https://docs.coldstack.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coldstack.io/tools/supported-tools/cyberduck.md).

# CyberDuck S3 Client

Cyberduck is a cloud storage browser for Mac and Windows with support for ColdStack, FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive and Dropbox.

To download CyberDuck go to the official website: [https://cyberduck.io/](<https://cyberduck.io/ >)

### Setting up CyberDuck

Press the + button:

![](/files/-MiS6XppwkQ16y_DfpPM)

In the popup:

1. At the top select `Amazon S3`
2. In the  `Server`  section type `s3.coldstack.io` &#x20;
3. In the  `Port`  section type `443` &#x20;
4. Put in your `Access Key ID`  and  `Secret Access Key` &#x20;

![](/files/-MiVU70ZDJQPfjIAXZcM)

Then click on `Preferences` :

![](/files/-MiVaV1sPUMUTwK5RspF)

Then click on `Transfers` :

![](/files/-MiVaeEtgDpWKkz5Shyf)

And make sure that the `Segmented downloads with multiple connections per file` checkbox is turned off:

![](/files/-MiVaoBD-jUFxjEZibLJ)

Congrats! Now you are ready to use ColdStack! You will see a new connection. Click on it:

![](/files/-MiVUdFmiMHEwJ5gl3Kk)

It will open the list of your buckets:

![](/files/-MiVVAFHEiUenhrKmfEW)

Lets upload some files to ColdStack!

![](/files/-MiVVWdoYMguuc1Z-xBf)

![](/files/-MiVVu6t8zjSL1BpwhJ9)

![](/files/-MiVVwJg0BtaOEI3Okzv)