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A cli friendly sync client for JottaCloud

Project description


A cli friendly sync client for JottaCloud.

It will sync your directory tree with JottaCloud, just like the official client.

Note. This a third-party, not an official client.

Is it safe?

Being based on a reverse engineering of the protocol, things may break in unexpected ways. Don’t rely on this as your sole backup unless you manually verify that the data is correctly transferred. The authors won’t be held responsible for any data loss.

How to get it


pip install jottacloudclient

How to use it

Run at some interval:

python <top dir of your local tree> <the mount point on jottacloud>

The top dir is just an existing directory on your system that you want to backup.

The mount point is a path on JottaCloud. It’s put together from a combination of an existing device name, an existing backupdir and a folder name (that will be created if it doesn’t exist). Like this: /<devicename>/<backupdir>/<foldername>


python /mnt/pictures /mybox/backup/pictures

How it works

The basic operation on the JottaCloud servers is to make file level backups. Unlike data-level protocols like rsync, the JottaCloud protocol does not seem to support delta encoding, so file syncing needs to happen by copying the full file content.

To determine if a file needs to be updated, Jotta Cloud Client will compare the md5 hash of the local file with the one that the JottaCloud server reports. If the hashes differ, the client will upload the file. This is akin to how the official JottaCloud client works.


The program needs to know your password to JottaCloud. There are two ways to do this.


Create a $HOME/.netrc file with this entry:

machine jottacloud
        login <yourusername>
        password <yourpassword>

Make sure noone else can see it: chmod 0600 $HOME/.netrc.

environment variables

Add JOTTACLOUD_USERNAME AND JOTTACLOUD_PASSWORD as variables in the running environment:


But it’s not finished!

But it’s not very advanced!

Geez, you should’ve added super bright idea already!

Want to help out? Read the document and get cracking!

Send pull requests to the git tree or start fleshing out details in a bug report.

Project details

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