谜语日
riddleyu
A daily 成语 puzzle. Decode the ancient four-character idiom from cryptic clues — one chance each day.
歌词接龙
gecijielong
Chain Mandarin song lyrics together. Each player continues where the last left off — a flowing dragon of verse.
歌词桥
geciqiao
A bridge between songs and language learning. Study Mandarin through the lyrics of artists you love.
coming soon
古脉
gumai
Trace the pulse of classical Chinese. Explore the living network of ancient texts and their echoes through time.
同义词星图
synonyms
Visualize the constellation of Mandarin synonyms. See how words cluster and orbit each other in semantic space.
注解
zhujie
Paste any Chinese text and get rich, contextual annotations — vocabulary, grammar, culture, and cross-references.
爵士和弦
jazz
Explore jazz chord progressions through interactive real book analysis and harmonic visualization.
知识引擎
engine
A knowledge graph dashboard visualizing Chinese language learning progress across vocabulary, grammar, and semantics.