Uploading block blobs to Azure from Cyberduck

Posted by Joe Enos on March 20, 2021 · 1 min read

Cyberduck, which is a ridiculously awesome file transfer and storage browser application, has a little quirk that caught me off-guard. When uploading to Azure, it writes append blobs by default instead of block blobs, and personally, I only need block blobs.

There's no actual setting in the app, but after a bit of help, and reviewing this link and this link, the solution is to create or open the file at:

users\{me}\appdata\roaming\cyberduck\default.properties or /Users/jtenos/Library/Group Containers/G69SCX94XU.duck/Library/Application Support/duck/default.properties

Add the following line:


Files will now be uploaded as block blobs.