Radical Box · Hộp Bộ Thủ

Learn all 214 Kangxi radicals (康熙部首) with their Hán Việt readings and English or Vietnamese meanings. English is the default; switch to Vietnamese with the EN / VI toggle.

What's inside

• Flashcards: radical on the front, Hán Việt, meaning and example characters on the back.
• Memory match: pair each radical with its Hán Việt + meaning.
• Quiz: 10 questions, four ways to ask (character → meaning, character → Hán Việt, Hán Việt → character, meaning → character).
• 60-second race: mixed questions against the clock, keeps your best score.
• Find the radical: see a real character like 河 and pick the radical it is filed under.
• Write from memory: only the name and meaning, write the strokes in order.
• Writing corner: radical of the day, trace practice and the 8 rules of stroke order.
• Library: all 214 radicals by stroke count, searchable in English, Hán Việt (no accents needed) or by number.

Radicals you miss come back more often. Getting one right three times marks it as known (熟). Progress is saved in your browser.

Run it

It is a single self-contained index.html: open it in a browser, or serve it with GitHub Pages. Stroke data from Hanzi Writer is bundled into the page, so stroke practice works offline. Audio uses the Chinese and Vietnamese voices installed on your device.

Stroke practice is built on the same Hanzi Writer setup as mandarinstrokeorder.