BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.
NordLocker - Keeping files in the cloud? Protect them with leading-edge encryption. NordLocker makes file security easy.
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
FileWhopper - Share large files or folders of ANY SIZE online easily and securely. Your files are encrypted & password-protected. Download while still uploading. No monthly subscription or storage to buy, just a one-time fee based on file size.
Uppy.io - Next open source file uploader for web browsers
HDDBUNKER - upload and share your screenshots and images , fast free and secure