Katakana Converter
Instantly convert katakana to hiragana, half-width kana, dakuten and more! Perfect for Japanese learning, documents, and social media.
変換結果 / Results:
What is Katakana Converter
Katakana Converter is a free tool that instantly converts Katakana to 8 different formats including Hiragana, half-width Kana, dakuten, handakuten, and more. Perfect for SNS posts, messages, document creation, and all Japanese text input scenarios!
💡 Perfect For These Situations!
- Convert Katakana to Hiragana
- Convert full-width Katakana to half-width Kana to save character count (useful for SNS text limits)
- Convert seion to dakuten/handakuten
- Convert small ャュョ to large ヤユヨ
- Standardize loanword notation
100% free, no registration, no app required. Converted text can be used anywhere with simple copy & paste. Compatible with all platforms including Twitter, LINE, Instagram, and email.
✨ Conversion Features
"アイウエオ" → "あいうえお"
"アイウエオ" → "ｱｲｳｴｵ"
"アイウエオ" → "㋐㋑㋒㋓㋔"
"カキクケコ" → "ガギグゲゴ"
"ハヒフヘホ" → "パピプペポ"
"ャュョッ" → "ヤユヨツ"
"ヤユヨツ" → "ャュョッ"
📝 Usage Example: Half-width Kana is perfect for character limits and retro expressions! "コンピューター" → "ｺﾝﾋﾟｭｰﾀｰ" reduces to about half the character count. Also creates a Showa-era retro atmosphere.
Katakana Converter Usage (3 Steps ・ Copy and Paste Complete!)
Enter Katakana
Enter the Katakana you want to convert in the input box. Example: "アイウエオ", "コンニチハ", etc.
💡 Tip: Loanwords and proper nouns can also be converted at once
Check Conversion Results
8 types of conversion results are automatically displayed. Choose from Hiragana, half-width Kana, circled, dakuten, handakuten, large Kana, or small Kana.
💡 Tip: Circled Katakana (㋐㋑㋒) is perfect for eye-catching expressions!
Copy and paste your favorite result
Click the "Copy" button for your desired result. Paste it into Twitter, LINE, email, etc.
💡 Tip: Copy complete with just one click!
Katakana Converter FAQ
Q: What characters can be converted?
A: All Katakana characters (ア〜ン) can be converted. Supports Hiragana, half-width Kana, dakuten, handakuten, and large/small Kana conversions.
Q: What is half-width Kana used for?
A: Used for SNS with character limits (like Twitter), creating a retro atmosphere, and system compatibility. Example: "コンピューター" → "ｺﾝﾋﾟｭｰﾀｰ"
Q: Can it be used to standardize loanword notation?
A: Yes! Useful for standardizing notation variations like "コンピュータ" vs "コンピューター". First unify to Katakana, then convert as needed.
Q: How do dakuten/handakuten conversions work?
A: Bulk converts seion to dakuten/handakuten. Example: "カキクケコ" → "ガギグゲゴ", "ハヒフヘホ" → "パピプペポ". Useful for special expressions and creating unique names.
Q: What's the difference between small and large Kana?
A: Can convert between small Kana (ャュョッ etc.) and large Kana (ヤユヨツ etc.). Small Kana exist for "アイウエオ・ヤユヨ・ワ・ツ" and special cases "カ→ヵ, ケ→ヶ" (e.g., "一ヶ月", "〜ヵ月").
Q: Can conversion results be used anywhere?
A: Yes! Can be used anywhere Japanese is supported including Twitter, LINE, Instagram, email, Word. Just copy & paste.
Q: Can kanji and English be converted?
A: This tool is Katakana-specific. Kanji and English are output as-is. For Hiragana conversion, please use the "Hiragana Converter".