Freeplane - Freeplane is a powerful and free software for building mind maps.
Machine Learning Flashcards - 300 digital flashcards
vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.
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SuperNotecard - Introducing SuperNotecard. SuperNotecard is an online writing tool that features virtual notecards to help arrange facts or scenes, track details, organize paragraphs, and clarify your composition process.
FlashCard Maker Online - AI FlashCard Online !Free AI FlashCard Maker, It generates flashcard from a prompt words using AI.