Dropbox is probably the most popular online file storage and synchronization tool among Linux users. And as we have seen earlier, it is rather easy to install Dropbox in Ubuntu . But as a Linux user, what really are the alternatives to Dropbox for online file storage? Lets find out.

SparkleShare PPA available for Ubuntu users, do the following in Terminal.

mkdir -p ~/.ssh sudo add-apt-repository ppa:warp10/sparkleshare sudo apt-get update sudo apt-get install sparkleshare libwebkit1.1-cil git-core

First command is required because if the ~/.ssh folder doesn't exist, SparkleShare crashes. See webupd8 for more info.

For those using other flavors of Linux, visit SparkleShare downloads page.

is free and open source collaboration and sharing tool that is designed to keep things simple and to stay out of your way. SparkleShare creates a SparkleShare folder in your home directory in which you can add different remote folders (these can be on different servers). It has the same DropBox like notification system.is an online backup tool for Windows, Mac and Linux users to back up, share, sync and access files at will. SpiderOak uses encrypted cloud storage and client-side encryption key creation, so even employees of SpiderOak cannot access any user information. SpiderOak offers free 2 GB version and several paid plans that starts at $10.00/month for each 100 GB increment. Some components of SpiderOak are open source, and the promoters have made it clear that they will open source the client in the near future.