Cephadex is a learning tool that is available for free and enables users to generate personalized decks- worksheets- and tests using a range of materials like pdfs- ppts- docs- mp3s- wikipedia pages- or youtube videos. It also incorporates a spaced repetition system and other study aids to assist users in effectively mastering their subjects and attaining academic success. Moreover- users have the opportunity to join an active community that provides educational games- challenges- and the option to monitor progress and establish objectives.