ActiveDiary is a password-protected diary application. The program uses RSA and Blowfish encryption to protect your data and files. The interface is similar to Microsoft Outlook and is completely configurable. The program can hold an unlimited number of accounts that each contains unlimited calendar and free form based diaries.

ActiveDiary's editor is on par with the best word processors including WYSIWYG editing and support for pictures, sounds, and videos. The program also includes many other features such as a goal manager, password keeper, contact manager, sticky notes, and many more.