WindowTabs

WindowTabs is a free and open-source tool designed to streamline your Windows workflow. It applies a tabbed interface to nearly all desktop applications, including File Explorer, Office, PDF viewers, WeChat, and text editors. This lets you group related windows together, merge them via drag-and-drop, and toggle between tabs effortlessly. As a green, install-free software, it lightens your system load while cutting through taskbar chaos—making multitasking faster and more intuitive.