Macro PDF

Upload textbooks, lecture notes, or research papers, and the system will understand the text and images on every page and turn them into Anki-ready card decks.

A digital Buddhist canon that starts from the scriptures to understand the Dharma — nearly 20,000 volumes of sutras with plain-language explanations and keyword hints, without altering the original text.

Get free bilingual translation for web pages, PDFs, images, and video subtitles, plus high-precision professional translation powered by large AI models.

A fun geography puzzle website with multiple satellite map gameplay modes, including city guessing from satellite images, location guessing, geography quizzes, satellite wallpapers, and themed satellite maps.

NuromBoard is an AI-powered visual thinking workbench built for learning, exam prep, and academic paper reading, connecting PDF annotation, whiteboard organization, and mind map building into a seamless knowledge workflow.

Turn abstract probability and statistics concepts into visible, easy-to-understand content with fun interactive visual demos. Master core probabilistic thinking, and dive deep into classic theories including the Law of Large Numbers, Bayes' Theorem,