External Dictionaries
A collection of useful online dictionaries and tools for Hán-Nôm research.
Zi.tools

A comprehensive tool for analyzing Chinese character components, etymology, and phonology.

Nôm Na Việt

Comprehensive Hán-Nôm dictionary with OCR, handwriting recognition, and a classical text reader.

Hán Việt Từ Điển Trích Dẫn (Thi Viện)

A popular online dictionary for Sino-Vietnamese characters, featuring detailed definitions and compound word lookups.

Zdic (Handian)

A comprehensive online Chinese character dictionary featuring detailed explanations, etymology, calligraphy, and phonology.

Pleco

A widely used Chinese dictionary app with handwriting recognition, OCR, and flashcards.

De Rhodes Dictionary (OCR)

OCR version of the Dictionarium Annamiticum Lusitanum et Latinum on Wikisource.

Dictionary of Chinese Character Variants (異體字字典)

An authoritative reference from Taiwan's Ministry of Education cataloguing variant forms of Chinese characters, with detailed annotations and historical sources.