青简 Qingjian

青简 Qingjian is a macOS Pinyin input method written in Rust that displays English or Japanese translations alongside candidate words.

Qingjian is a macOS Pinyin input method written in Rust designed to help users learn English or Japanese while typing in Chinese. Alongside traditional Chinese candidate words, it displays a translation and part of speech, helping you learn without interrupting your workflow or showing pop-up quizzes. All core features including full-sentence input, dictionary lookup, candidate re-ranking, and learning data are processed locally on your device without uploading data. It supports full-sentence conversion, short spelling, spelling correction, fuzzy pinyin, double pinyin, English mode, and emojis. Unfamiliar words appear in orange and fade to gray once you have seen them enough times. It also features optional cloud association that can connect to your own AI service provider for sentence completion, translation, and character queries.

青简 Qingjian at a glance

Best for: Student, Writer
Runs on: macOS
Pricing: Free
Released: September 2026
Category: AI productivity tool
Website: qingjian.app

Key features

Full-sentence input with local small model re-ranking
English and Japanese translations with part of speech
Spelling correction and fuzzy pinyin
Double pinyin and short spelling support
Local learning for word frequency and n-grams
Optional cloud AI integration for sentence completion
Automatic fading for learned words

Use it for

Typing Chinese while learning English or Japanese vocabulary
Translating and querying selected text using AI
Entering emojis and switching to English mode

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