RetroShare is a Open Source cross-platform, private and secure decentralised communication platform. It lets you to securely chat and share files with your friends and family, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides filesharing, chat, messages, forums and channels
Better Sharing. Sharing large photo albums is as easy as sending a text file. And you control if people can sync your content to their computer or just view it online.
"Our core product, SHAREit, is a cross-platform sharing app. SHAREit eliminates the need for cables to enable wireless transfer of files between devices at rapid speeds. Users can share with friends as well as transfer their personal content on the go, between all of their devices."
OpenBitTorrent is a bittorrent tracker free for anyone to use. You don't need to register, upload or index a torrent anywhere, all you have to do is to include the OpenBitTorrent tracker URL in your torrent.
"MEGApwn is a bookmarklet that runs in your web browser and displays your supposedly secret MEGA master key, showing that it is not actually encrypted and can be retrieved by MEGA or anyone else with access to your computer without you knowing."