Mnemosyne

Free open-source spaced repetition flashcard software for serious learners.

About Mnemosyne

Mnemosyne is a free, open-source spaced-repetition flashcard application for desktop and Android, using research-based algorithms to optimize long-term memory retention.

Mnemosyne is built on memory research principles and uses the proven SM-2 spaced repetition algorithm to schedule reviews at optimal intervals. As an open-source project, it offers transparency and community-driven development for learners who want a customizable, research-backed memorization tool.

Key Information

Pricing

Free (open-source)

Platforms

Windows, macOS, Linux, Android

Pros

  • Completely free and open-source
  • SM-2 algorithm-based scheduling
  • Supports images, sound, and LaTeX
  • Learning statistics and analytics
  • Cross-platform sync
  • Plugin support for customization

Cons

  • Less user-friendly interface
  • Steeper learning curve
  • Smaller community than Anki
  • Limited mobile platform support

Best For

Mnemosyne is perfect for users comfortable with DIY setup who want a customizable, free flashcard system for serious memorization work in languages, medical studies, or other knowledge-intensive fields. It's ideal for learners who appreciate open-source software and research-based learning methods.