A macOS hotkey tool that converts half-width characters to full-width with ⌥F, designed for Japanese forms that require full-width input.

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License

NOASSERTION

Last updated

2026-07-09

AI repository intelligence
FR-AI / ANALYSIS

Why it is worth attention

Solves a specific pain point for users of Japanese web services by providing an instant, one-key conversion without needing to switch input modes.

Who it is for

  • Japanese language users on macOS
  • People filling out Japanese government or banking forms
  • Expatriates and learners dealing with full-width requirements
  • macOS users who frequently type in half-width but need full-width output

Use cases

  • Entering full-width katakana or roman characters on Japanese websites
  • Converting typed half-width text before submitting forms that reject half-width input
  • Quickly fixing text during online shopping or registration on Japanese sites
  • Avoiding manual copy-paste or third-party text converters

Strengths

  • Single keyboard shortcut (⌥F) works globally in any text field
  • One-time Accessibility grant required, no further configuration
  • Lightweight and focused – does one thing well
  • Free for personal, educational, and noncommercial use under PolyForm Noncommercial license

Considerations

  • Initial setup requires granting Accessibility permission and bypassing macOS Gatekeeper (xattr or 'open anyway')
  • Only available on macOS, no Windows or Linux support
  • Noncommercial license restricts use in commercial environments without a separate agreement

README quick start

安装

Description

macOS hotkey (⌥F) for Japanese forms that demand full-width input. 半角を全角に。

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