Hiragana ⇄ Katakana converter — bulk character mapping
Convert between hiragana and katakana with a single mode toggle. A purely mechanical per-character mapping — no dictionary download, instant conversion. Long-vowel mark, punctuation, kanji, and alphanumerics are preserved as-is. Runs entirely in your browser.
How to use
Paste Japanese text, choose a direction (Hiragana → Katakana or Katakana → Hiragana), then click Run. The forward mode shifts U+3041–U+3096 to U+30A1–U+30F6 by +0x60; the reverse mode shifts U+30A1–U+30F6 to U+3041–U+3096 by -0x60. Kanji, alphanumerics, punctuation, whitespace, newlines, and the long-vowel mark ー stay untouched. There's no morphological analysis, so it works the instant the page loads. Copy the result or download as .txt.
FAQ
- Is text uploaded?
- No. This is a pure code-point shift with no network calls — input and output stay inside your browser.
- Do I need to download a dictionary?
- No. There's no morphological analysis — just a ±0x60 Unicode shift, so it works the instant the page loads.
- Does it handle ゔ / ヴ?
- Yes. The covered range is U+3041–U+3096 ⇄ U+30A1–U+30F6 in both directions, so ゔ ⇄ ヴ map cleanly.
- Does it handle halfwidth katakana (ｦｱｲｳ…)?
- No. Only fullwidth katakana (U+30A1–U+30F6) is in scope. Run our Halfwidth → Fullwidth tool first to normalize, then feed the result into this tool.
- What happens when I switch modes?
- The mode is evaluated at conversion time, so after toggling the radio you need to click Run again to recompute. The stats row beneath the output also shows the active direction.
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