Tools to annotate Chinese text

The problem, in plain words: “I want to write Chinese (hanzi) and have the app automatically add pinyin and English translations and let me highlight characters while it highlights the matching pinyin and definitions.”

Pleco Chinese Dictionary fits best, with 2 more that fit too.

You want an app where you paste or import Chinese text and it automatically shows pinyin and English translations, and lets you click or highlight characters so the matching pinyin and definitions are highlighted.

Updated August 2026.

What fits

Pleco Chinese Dictionarystrong · 88

A mature Chinese dictionary and document reader that offers OCR, handwriting input, pinyin and English definitions; users commonly use its document reader and lookup features to see characters with pinyin and definitions and to tap words for instant lookup, matching your interactive highlighting need.

Best for: Learners who want a robust offline dictionary plus document/OCR reader that shows pinyin and English definitions and supports interactive lookups.

Paicistrong · 85

Described as a tool that recognizes Chinese text (OCR), provides pinyin and translation, and turns input text into learnable lesson material — its primary purpose is converting Chinese text into pinyin+English and audio, which maps closely to your need for automatic annotation and interactive reading.

Best for: Learners who want to take photos or paste Chinese text and get instant pinyin plus English translations and audio for study.

trainchinesestrong · 80

Packages a full Chinese dictionary with OCR and native-speaker audio, designed for learners who want to turn text into study material; its OCR + dictionary focus aligns with automatic pinyin and translation of input text and with interactive lookup while reading.

Best for: Serious learners who want integrated OCR, dictionary entries with pinyin and audio, plus flashcard study from the same text.

Partly fits

Aictionarypartial · 56

Desktop Chinese-English dictionary with offline lookup and optional AI definitions; it helps quickly get pinyin and English for words you select but is primarily a lookup tool rather than a full auto-annotator for pasted text with synchronized per-character highlighting.

Won’t cover: Focused on word lookup and desktop dictionary features rather than automatically annotating whole passages with synchronized pinyin and definitions.

Linguislepartial · 50

Built to keep translations and dictionary lookups beside Apple Books so readers can translate words or sentences without leaving the page; useful for interactive lookup but described as supporting a limited set of languages and as a reading-layer rather than a dedicated Chinese pinyin annotator.

Won’t cover: Acts as an inline translation/lookup layer for book reading rather than a dedicated tool that auto-generates per-character pinyin and synchronized highlighting for arbitrary pasted text.

HighlightGPTpartial · 45

A browser extension that sends highlighted text to ChatGPT for translation and explanation, which can quickly give translations and explanations for selected Chinese text but does not itself produce character-level pinyin annotations and synchronized highlighting.

Won’t cover: Provides translated or explained text via a ChatGPT side panel when you highlight, but does not auto-annotate whole passages with matched per-character pinyin and highlighted definitions.

Questions

What's the best tool to annotate Chinese text?

Paici is the strongest match — Described as a tool that recognizes Chinese text (OCR), provides pinyin and translation, and turns input text into learnable lesson material — its primary purpose is converting Chinese text into pinyin+English and audio, which maps closely to your need for automatic annotation and interactive reading.

Is there a tool that fully solves this?

3 products match this closely.

What won't these tools cover?

Focused on word lookup and desktop dictionary features rather than automatically annotating whole passages with synchronized pinyin and definitions. · Acts as an inline translation/lookup layer for book reading rather than a dedicated tool that auto-generates per-character pinyin and synchronized highlighting for arbitrary pasted text. · Provides translated or explained text via a ChatGPT side panel when you highlight, but does not auto-annotate whole passages with matched per-character pinyin and highlighted definitions.

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