O.M.F.K

AI-powered keyboard layout corrector for macOS

See how it works

Website · Source Code

🇺🇸 English · 🇷🇺 Russian · 🇮🇱 Hebrew

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The Problem

You're typing, deep in thought... then you look up:

Ghbdtn, rfr ltkf?   →   Привет, как дела?
руддщ цщкдв          →   hello world
akuo                 →   שלום

Wrong keyboard layout. Again.

OMFK fixes this automatically, as you type.

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✨ Key Features

🚀 Type without thinking Just type. OMFK detects wrong layouts on word boundaries and fixes them instantly. No hotkeys needed.	🧠 Self-learning Learns from your corrections. Undo a word twice — OMFK remembers. Use Alt to pick an alternative — OMFK learns your preference.
🔒 100% on-device Everything runs locally. No network calls. No logging. No telemetry. Your keystrokes never leave your Mac.	⚡ Blazing fast Native CoreML model with CNN+Transformer ensemble trained on Wikipedia and OpenSubtitles dumps. Detection latency <50ms.
🇮🇱 Hebrew support One of the few correctors that properly handles Hebrew — including QWERTY-based layouts with sofit letters (ץ ך ם ן ף).	🔄 Hotkey cycling Press Option to cycle through alternatives: original → Russian → English → Hebrew → back.

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Installation

1. Download

Get the latest .pkg installer from Releases.

2. Install

Double-click the PKG file and follow the installer prompts.

3. Grant Accessibility Access

On first launch, macOS will ask for Accessibility permission:

1. Open System Settings → Privacy & Security → Accessibility
2. Enable OMFK
3. OMFK will automatically start working once permission is granted

Note: Accessibility access is required to monitor keyboard input. OMFK cannot function without it.

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Usage

Action	How
Toggle auto-correction	Click menu bar icon
Cycle through alternatives	Press Option
Undo last correction	Press Option immediately after
Exclude an app	Settings → Per-App Rules
Manage learned words	Settings → Dictionary

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Troubleshooting

"App is damaged" error

If macOS says the app is damaged, run in Terminal:

xattr -cr /Applications/OMFK.app

Corrections not working

1. Check Accessibility permission is enabled
2. Quit and reopen OMFK
3. Check if the app is in your exclusion list

Wrong corrections

Press Option to cycle through alternatives, or disable auto-correction for that app.

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Known Limitations

• Single-letter prepositions: у and к may not convert at phrase start (fix in progress)
• Punctuation inside words: Words like k.,k. (люблю) may not convert correctly
• Sublime Text: Alt cycling may insert text instead of replacing (app-specific behavior)
• Some terminal emulators: May require clipboard fallback mode
• System autocorrection: Disable "Correct spelling automatically" in System Settings → Keyboard for best results

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Requirements

• macOS Ventura (13.0) or later
• Apple Silicon or Intel Mac

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Feedback

Found a bug or have a feature idea? Open an issue.

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Download · Source Code · Report Issue

Made by Alex Chernysh