Everycards – Flashcard and Quiz Maker

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.

A practice-focused vocabulary memorization tool that supports word and example sentence practice for both built-in and custom flashcard sets.

An AI agent-powered scientific research assistance platform developed with the philosophy of 'letting knowledge emerge naturally'.

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.

A startup handbook for ordinary people.

One brutal puzzle a day. Sharpen your brain in minutes.