Han - Nom Dictionary

HAN-NOM DICTIONARY — TỪ ĐIỂN HÁN NÔM

A fully offline Vietnamese-Chinese (Han-Nom) dictionary with stroke order animations, OCR character recognition, handwriting input, and Chinese-Vietnamese translation. Designed for students, researchers, calligraphy enthusiasts, and anyone interested in Han-Nom characters.

KEY FEATURES

• Han-Viet Lookup: Search by Chinese character or Han-Viet romanization. Comprehensive database with tens of thousands of entries including meanings, pronunciations, and compound words.

• Animated Stroke Order: Watch each stroke drawn in correct order on a traditional 米字格 (mizigé) practice grid. Master proper writing technique step by step.

• Image OCR: Recognize Chinese characters from photos of books, signs, calligraphy, or handwritten notes. Capture with the camera or pick from your photo library — recognition runs entirely on-device.

• Handwriting Recognition: Draw a character on screen for instant recognition — useful when you remember the shape but not the reading. Powered by Google ML Kit, runs offline.

• Offline Translation: Chinese ↔ Vietnamese translation via on-device ML Kit. Language model downloads once, then works fully offline forever.

• Pronunciation: Built-in TTS for Mandarin Chinese and Vietnamese. Hear the proper pronunciation of any character or word.

• Favorites & History: Save characters for later review. Search history is automatically tracked so you can quickly return to recent lookups.

• Daily Tips & Daily Character: Curated learning tips on pronunciation, grammar, and vocabulary. A new featured character every day on the home screen.

EDITORIAL DESIGN

Inspired by traditional Han-Nom dictionaries printed on rice paper — cream paper background, soft black ink, vermilion seal accents (印章), hairline ochre rules, and italic small-caps labels. A genuine alternative to standard Material design dictionary apps that feels like holding a real reference book.

OFFLINE-FIRST ARCHITECTURE

All core features work without internet:
• Full dictionary database bundled on-device
• ML Kit translation models — one-time download, then offline forever
• Stroke data cached locally after first lookup
• System TTS for pronunciation
• Local SQLite for favorites and history

WHO IS THIS FOR

• Students learning Mandarin Chinese
• Calligraphy and traditional Han-Nom enthusiasts
• Vietnamese learners exploring classical literature, temples, and historical sites
• Researchers, translators, and language teachers
• Anyone who wants to learn Chinese characters with proper writing technique and elegant design

PRIVACY

We collect zero personal data. All data (favorites, history) stays on your device. No account required, no login, no ads, no analytics.

Camera and photo library permissions are only used when you actively use the image recognition feature. Selected images are processed entirely on-device and never uploaded.

For feedback or questions, please use the contact email in the app information section. Thank you for using Cách viết chữ Hán Nôm!