WindowSill

WindowSill is a desktop application that puts an AI-powered command bar at the edge of your Windows screen. It gives you quick access to productivity tools without needing to switch between applications. You can control media playback, manage your clipboard history, convert units and currencies, set reminders, and handle meetings—all from a single, always-accessible interface.

The tool integrates AI text capabilities that work in any input field across your system. Select text and use WindowSill to rewrite it, fix grammar, translate between 35+ languages, or adapt the tone for different audiences. It supports both online AI providers like OpenAI and Anthropic, as well as local LLMs for privacy-conscious users. The media controls work with Spotify, YouTube, Netflix, and most media players, while meeting controls currently support Microsoft Teams with more platforms coming.

WindowSill benefits anyone who works extensively on Windows and wants to minimize context switching. Content creators can quickly refine their writing across different platforms, office workers can manage meetings and documents more efficiently, and power users appreciate the unified control over media, conversions, and system utilities. The clipboard history with privacy protection and image processing tools make it particularly useful for multitaskers who handle diverse content types throughout their day.