WindowSill is described as 'AI-powered command bar for Windows 10 and 11 centralizes productivity, featuring clipboard privacy, batch image actions, reminders, and advanced AI writing tools' and is a clipboard manager in the office & productivity category. There are more than 25 alternatives to WindowSill for a variety of platforms, including Mac, Windows, iPhone, iPad and Google Chrome apps. The best WindowSill alternative is Microsoft PowerToys, which is both free and Open Source. Other great apps like WindowSill are Microsoft Copilot, Raycast, Seelen UI and PasteBar.
Every AI tool you use (ChatGPT, Claude, Cursor, Windsurf) has its own prompt and skill management. But they're completely siloed. Your prompts in Cursor don't travel to Claude Code. Your skills in one tool don't show up in another.
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