Input Source Pro is a macOS utility that automates switching between input sources based on the active application or website.
The tool addresses the friction multilingual users face when constantly switching keyboard layouts and input methods. It learns which input source you prefer for each application and website, then switches automatically as you move between them. For browser-based work, it can detect the specific website you're visiting and apply per-site input source preferences. Beyond switching, the tool offers an on-screen indicator showing your current input source, customizable keyboard shortcuts for manual switching, and app-specific punctuation modes that force English symbols even when using non-Latin input sources.
Input Source Pro suits developers and multilingual professionals who work across multiple applications and websites throughout the day. It is particularly valuable for those using code editors, terminals, and browsers simultaneously, where constant manual input source switching creates friction. The tool's app-aware function key switching is useful for developers who need standard F1-F12 keys in IDEs but prefer media keys in everyday applications. Anyone managing multiple input sources on macOS will benefit from the automatic context-aware switching, though the tool is specifically designed for this use case rather than offering general-purpose input management.
The project maintains an active discussion forum for user engagement and publishes a detailed changelog documenting updates. Development appears focused on expanding browser support and refining the automation logic for input source switching across different contexts.
