Online Japanese text conversion tool that converts Japanese sentences to hiragana, katakana, or romaji. Supports multiple conversion modes and romanization systems, suitable for Japanese learners, translators, and content creators.

Conversion Targets

Hiragana (ひらがな)

Convert Japanese text to hiragana form for easier reading and learning.

Example:

Input: こんにちは世界
Output: こんにちはせかい

Katakana (カタカナ)

Convert Japanese text to katakana form, commonly used for loanwords and emphasis.

Example:

Input: こんにちは世界
Output: コンニチハセカイ

Romaji (Rōmaji)

Convert Japanese text to Latin alphabet spelling for reading by those unfamiliar with Japanese.

Example (Hepburn style):

Input: こんにちは世界
Output: konnichiha sekai

Conversion Modes

Normal Mode

Directly converts Japanese text to target format without adding extra information.

Example:

Input: 東京に行きます
To Hiragana: とうきょうにいきます

Word Segmentation Mode

Adds spaces to separate words during conversion for understanding sentence structure.

Example:

Input: 東京に行きます
To Hiragana: とうきょう に いきます

Okurigana Mode

Marks okurigana portion of kanji to help understand word pronunciation and grammatical changes.

Example:

Input: 食べます
Output: 食(た)べます

Furigana Mode

Marks pronunciation (kana) above or after kanji, similar to ruby annotation effect.

Example:

Input: 東京に行きます
Output: 東京(とうきょう)に行(い)きます

Romanization Systems

Hepburn

Most widely used romanization system, conforms to English pronunciation habits.

Example:

ちょっと → chotto
新幹線 → shinkansen

Nippon

Romanization system based on Japanese fifty sounds chart.

Example:

ちょっと → tyotto
新幹線 → sinkansen

Passport

Official romanization spelling used on Japanese passports.

Example:

大野 → Ohno (not Oono)
加藤 → Kato (not Katou)

How to Use

Enter Japanese text in text box (hiragana, katakana, kanji, or mixed text)
Select conversion mode (normal, word segmentation, okurigana, furigana)
Select conversion target (hiragana, katakana, romaji)
Select romanization system (only when conversion target is romaji, choose Hepburn, Nippon, or Passport)
Click convert button to get results
Click result area to copy

Use Cases

Japanese Learning

Learn kanji pronunciation through furigana mode to see pronunciation of each kanji; practice word segmentation ability using word segmentation mode to understand word boundaries; learn romanization spelling to help memorize pronunciation.

Text Processing

Convert Japanese text to pure kana form for systems not supporting kanji; convert to katakana for emphasis or special typography; generate romaji for indexing or search functions.

Translation Assistance

Add furigana to translations to help readers understand original Japanese; convert to romaji for pronunciation reference by non-Japanese speakers; use word segmentation mode to assist understanding sentence structure.

Content Creation

Add pronunciation annotations to Japanese teaching materials; create Japanese learning cards and practice materials; generate kana versions suitable for beginners.

Notes

Kanji conversion relies on dictionary, some rare characters or proper nouns may not convert accurately
Homographs will be determined by context but may not be completely accurate
Okurigana and furigana modes work best when converting to hiragana
Romaji conversion may differ based on spelling system, choose appropriate system for use case
Long vowel symbols may be represented differently in different romanization systems