Yasdapp

Yasdapp is a free, simple and secure way to send encrypted files to your friends and coworkers. Most of communication channels can be easily accessed by third-parties, not only government or your Internet provider (ISP), but by your competition and pretty much anyone with the appropiate knowledge. Yasdapp allow you to encrypt sensitive files with a secure cipher, so the only way of access them is knowing the passphrase you've entered. For using Yasdapp you don't have no install anything. The encryption of your files happens client-side, in your Web browser