Unfumble

Unfumble is a macOS application designed to automate the switching of keyboard language layouts as users type. The tool addresses the inconvenience of manually toggling between language inputs, a process that typically requires using the "globe" key or similar manual actions in the operating system. With Unfumble, the switch between language layouts occurs automatically and in real-time, requiring no additional user input or waiting. The application detects which language is intended for each word, even correcting words that were started in the wrong layout by rewriting them instantly to match the intended language.

Among its features, Unfumble offers auto-correction, matches language layouts to specific applications, and fixes typos as they occur. The tool is context-aware, understanding that identical keystrokes can have different meanings depending on the app in use—for example, distinguishing between commands in a terminal and words in a chat application. This context sensitivity allows it to recover or leave words as appropriate based on the environment. Unfumble also adapts over time by learning from the user's typing habits. If a correction is not desired, users can immediately undo it with a keyboard shortcut, and the tool will prompt whether to stop making that correction in the future, ensuring that accidental corrections do not affect its learning.

Unfumble is available as a beta download for macOS 13 and above, supporting both Apple Silicon and Intel-based Macs. The service is free for the first 100 fixed words, with no further pricing or licensing details specified in the available information. There is also a waitlist for a Windows version, indicating planned expansion to additional platforms. Unfumble is positioned as an automatic keyboard language switcher, providing a solution for users who frequently type in multiple languages and want a more seamless typing experience.