Unfumble is a native macOS utility designed to automatically detect and correct wrong-language typing in real time. For bilingual and multilingual users, it acts as an autopilot for the keyboard, instantly rewriting gibberish text into the intended language layout without any manual switching.

Key Features

Real-Time Auto-Correction – Instantly converts wrong-layout typing to the correct character set as you type, with zero lag.
Context-Aware App Matching – Learns your preferred language for specific apps (e.g., English for code editors, Russian for WhatsApp) and switches automatically when you focus the window.
100% On-Device & Private – Operates completely locally without heavy LLMs or cloud API calls. Your data never leaves your Mac.
Smart Undo & Learn – Press ⌘Z to revert an unwanted fix, and Unfumble will learn to stop correcting that specific word in the future.
Broad Language Support – Currently supports 14 languages from a single engine, including English, Hebrew, Arabic, Russian, Ukrainian, Greek, and Thai.
Manual Mode – Turn off automatic switching and fix selected text on demand with a custom keyboard shortcut.

Integrations

Unfumble works system-wide across macOS and intelligently adapts to the context of any active application, including:

Slack
WhatsApp
VS Code & Terminals
Web Browsers
Email Clients

Why Use Unfumble?

Unfumble is the perfect utility for anyone who types in more than one language. Instead of realizing you just typed a block of unreadable text and reaching for the globe key to delete and start over, Unfumble silently fixes it mid-sentence.

Whether you're looking for a language layout manager or a productivity utility to protect your typing flow, Unfumble saves you from the daily frustration of manual layout switching and feels exactly like a built-in macOS feature.

System Optimization Mac Apps

Unfumble

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