NitroShare is a file sharing application that allows sharing files in your local network easy and fast. Once installed and configured, you can use it to send files to other computers in your network in a simple drag and drop mechanism. Also, the app is cross-platform, meaning you can also use it to send files to Windows computers without configuring Samba. Some other features of this app are:

* dynamic file compress during transfer to decrease transfer time and bandwidth
* CRC checksum generation to ensure file integrity during transfer
* full compatibility with clients running on other operating systems
* a helpful configuration wizard to guide you through setting up the application on your machines

To install NitroShare in Ubuntu, add the PPA and install it by usual apt commands in terminal:

sudo add-apt-repository ppa:george-edison55/nitroshare
sudo apt-get update
sudo apt-get install nitroshare