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For beginners learning Japanese

Yikai Input Method

Know Chinese Pinyin? You can type Japanese before learning romaji.
Start with こんにちは (hello). Type a little, learn a little.

Pinyin · Wubi · Chinese Pinyin to Japanese   /   Windows x64 · alpha release

Yikai · Chinese Pinyin to Japanesery stands for ri yu (Japanese in Chinese). Follow it with Chinese Pinyin.

ry+nihaoこんにちはHello
ry+zaoshanghao“Good morning” in Japanese

Romaji hints beside Japanese candidates

Type Japanese and see how it reads

Type rynihao to see the Japanese candidate こんにちは with a romaji hint beside it. Compare the reading as you choose a word and become more familiar with Japanese while typing.

Yikai Input Method with rynihao entered and the first candidate こんにちは followed by the romaji hint [kon'nichiha].
Yikai Input Method in use: [kon'nichiha] beside the candidate is a romaji hint, not the code you need to type.

Updated reading hints: type ryriben to see 日本 with kana にほん and romaji nihonn. Readings are for reference; selecting a candidate inserts only the text, without readings or language labels.

Japanese and English word suggestions

Type rypingguo to choose りんご or リンゴ, or yypingguo to choose apple. Both ry and yy accept Chinese Pinyin or Wubi codes. Suggestions depend on installed or imported dictionaries; word suggestions are not full-sentence translation.

Translate a complete sentence

Open the translation panel with the 译 button, enter your text and select Japanese or English. Copy the result or insert it back into your text. Full-sentence translation requires internet access; your quota is shown in the panel. The updated build supports translation-target refresh and local translation history.

Translation service and quotas

Yikai Input Method

This update adds compact horizontal and vertical toolbars, a gear-shaped settings button and paging through multiple candidate groups. The two input methods are installed separately.

Download ZIP archive

Chinese Pinyin, Japanese words

Get Yikai Input Method

Windows 10 / Windows 11 · x64
Type Japanese with Chinese PinyinPublic alpha

Yikai Input Method

Start with familiar Chinese Pinyin or Wubi: use ry + an input code to find Japanese words, or yy + a code to find English words. Japanese candidates can include kana and romaji hints for learners. Full-sentence translation uses a separate online panel.

  • ry + Chinese Pinyin to Japanese
  • yy + an input code for English words
  • Chinese Pinyin input
  • Wubi input

Version 0.1.0-alpha.1 · 8.8 MB

Download Yikai Input Method · Alpha
Japanese romaji and kana inputPublic alpha

Alternative · Dedicated Japanese input

Yikai Japanese Input Method

Type Japanese romaji to enter kana, then convert to kanji with Mozc. An alternative for learners practicing Japanese pronunciation or already familiar with romaji.

  • Romaji to kana
  • Mozc kanji conversion
  • Predictive candidates and settings

Version 0.2.0-alpha.13 · 37.4 MB

Download Yikai Japanese Input Method · Alpha

Both products are alpha releases and still in development. Installers are for Windows x64 only.

Latest downloads on the official site

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Before you download

Which input method should I choose?

Choose Yikai Input Method if you know Chinese Pinyin and want to use the ry shortcut. This feature uses Chinese Pinyin, not English words. For Japanese romaji, kana and kanji input, choose Yikai Japanese Input Method.

Does it work on a phone or Mac?

These installers are for Windows x64, not phones or Macs. To study Japanese on JP Learn, use the sign-in page.

Need help installing?

For installation and usage instructions, visit the input method help center; see what is new in the release notes.