ES File Explorer and FileZilla are free software that can be used to transfer data between Android Phones/Tablets & Windows PC wirelessly.

ES File Explorer helps you manage the files on your local Android device. Starting with version 3, however, LAN support was added to make it possible to share files with a Windows PC over Wi-Fi.

ES File Explorer is getting an update, and a new plugin, that allows for Chromecast streaming of your local and cloud saved media. It's pretty 'beta', but we like where it is going.