Sharing files can be a pain. The larger the file is, the more difficulty it inevitably creates. If you want those files kept private, you're in for a real nightmare. Well, not exactly.
Onionshare is a relatively new application that allows you to share files of any size securely and relatively anonymously over the Tor network without the need for a "midde-man" website. It's completely free and open source, and it's actually easy for anyone to use.
Meshbird create distributed private networking between servers, containers, virtual machines and any computers in different datacenters, different countries, different cloud providers. All traffic transmit directly to recepient peer without passing any gateways. Meshbird do not require any centralized servers. Meshbird is absolutly decentralized distributed private networking.
For example, user can create private network between DigitalOcean’s droplets in each datacenter and link it together by executing one command. All traffic will be encrypted with strong AES-256.
With BTFS, you can mount any .torrent file or magnet link and then use it as any read-only directory in your file tree. The contents of the files will be downloaded on-demand as they are read by applications. Tools like ls, cat and cp works as expected. Applications like vlc and mplayer can also work without changes.
LAN Share is a cross platform local area network file transfer application, built using Qt GUI framework. It can be used to transfer a whole folder, one or more files, large or small immediatelly without any additional configuration.
Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.