Keyparc is a free application designed to protect files on Windows, Linux and Mac OS X. The program allows you to encrypt data and protect it while working. The application requires registration on the manufacturer's website - in order to use Keyparc you need to enter your e-mail address. In addition to data protection, the program also allows for secure file sharing with friends and colleagues. It is enough to add a person with whom we would like to share materials in the interface. Keyparc is installed in the menu bar, where you can get quick access to it. The user can change the settings in the profile - access password or data of people with whom we share files. The program works with such Internet accounts as Google, Yahoo! or Windows Live ID. Data is encrypted in formats such as AES, NTT/Mitsubishi Camellia and 3DES (Data Encryption Standard).