Blindsend is described as 'Open source tool for private, end-to-end encrypted file exchange. It supports two use cases - sharing files and requesting files. Files uploaded to blindsend are encrypted using an end-to-end encrypted protocol, meaning neither blindsend nor any third party can' and is a large file transfer service in the file sharing category. There are more than 25 alternatives to Blindsend, not only websites but also apps for a variety of platforms, including Windows, Android, Linux and Mac apps. The best Blindsend alternative is LocalSend, which is both free and Open Source. Other great sites and apps similar to Blindsend are OnionShare, Send, Wormhole and SwissTransfer.