Top 3 Open-Source Alternatives to SuperMemo for Windows

Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.

Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

Mnemosyne (named for the Greek goddess of memory, Mnemosyne) is spaced repetition software...