WindowTabs

Meet WindowTabs: a lightweight, green (portable) software that brings order to desktop chaos. It seamlessly attaches tab bars to your open programs, from File Explorer and Office documents to PDFs and communication tools. You can group windows into tabbed sets, merge them by dragging, and navigate instantly. This free and open-source utility cuts through taskbar overload, streamlining how you work with many applications at once—no installation required, just run and organize.