Japanese Converter
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
