EnputPlus

A macOS input method that helps you type English with confidence. Get real-time spelling suggestions and word completions as you type — perfect for non-native English speakers or anyone who wants fewer typos.

What It Does

• Spelling suggestions — See corrections for misspelled words instantly
• Word completions — Start typing and get suggestions to complete your words
• Works everywhere — Functions in any app where you can type (browsers, editors, chat apps, Terminal, etc.)
• Keyboard-friendly — Navigate suggestions with arrow keys, Tab, or number keys
• Completely offline — Uses macOS's built-in spell checker. No data leaves your Mac.
• Not a grammar checker — Focuses on spelling and word completion (unlike Grammarly)

Installation

Download & Install

1. Go to the Releases page
2. Download the latest .pkg installer (currently, only supports Apple Silicon Macs, for Intel support please build from source)
3. Open the downloaded file and follow the installation steps:
   • "Install for me only" — Installs to ~/Library/Input Methods/ (no admin password needed)
   • "Install for all users" — Installs to /Library/Input Methods/ (requires admin password)
4. Log out and log back in (required for macOS to recognize the new input method)

Enable EnputPlus

1. Open System Settings → Keyboard → Input Sources (or search "Input Sources" in System Settings)
2. Click Edit... next to "Input Sources"
3. Click the + button at the bottom left
4. Find EnputPlus under English and click Add
5. Switch to EnputPlus using the input menu in your menu bar (flag icon)

How to Use

Just type normally. EnputPlus shows suggestions in a small popup as you type.

Key	Action
↑ / ↓	Navigate through suggestions
1-9	Select a suggestion by number
Tab	Select the highlighted suggestion
Return	Confirm your text
Escape	Keep what you typed (ignore suggestions)
← / →	Move cursor within input buffer
Backspace	Delete characters

Settings

Click on the input menu (flag icon in menu bar) while EnputPlus is active to access settings:

• Auto-show Suggestions — Toggle whether suggestions appear automatically as you type, or only when you press the down arrow key

Tips

• Switching input methods: Use Ctrl + Space (or Cmd + Space on older macOS) to quickly toggle between EnputPlus and the standard English input. You can customize this shortcut in System Settings → Keyboard → Keyboard Shortcuts.
• Great for commit messages: EnputPlus works in Terminal, making it useful for typing git commit messages without typos.

Requirements

• macOS 14.0 (Sonoma) or later

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For Developers

Building from Source

Prerequisites

• Xcode 15.0 or later

Build & Install

git clone https://github.com/c0rychu/enput-plus.git
cd enput-plus
./Scripts/install.sh

Or open EnputPlus.xcodeproj in Xcode and build (Cmd+B).

Creating a PKG Installer

./Scripts/build-pkg.sh

Requires:

• Developer ID Application certificate
• Developer ID Installer certificate
• Notarization profile in keychain (xcrun notarytool store-credentials)

Debug Logging

log stream --predicate 'subsystem == "com.enputplus.inputmethod.EnputPlus"'

Project Structure

EnputPlus/
├── EnputPlus.xcodeproj/
├── EnputPlus/
│   ├── AppDelegate.swift              # IMKServer initialization
│   ├── EnputPlusInputController.swift # Input handling
│   ├── SpellingSuggestionEngine.swift # Spell checking
│   └── ...
└── Scripts/
    ├── install.sh                     # Build & install script
    └── build-pkg.sh                   # PKG installer builder

License

MIT License

Acknowledgments

• macOS_IMKitSample_2021 - Reference implementation
• azooKey-Desktop - Japanese IME reference