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App Docker brings your entire toolchain inside the Unreal Editor. Embed any external Windows application โ your DCC tool, a reference image viewer, a web browser, Discord, a code editor, a terminal โ directly into a dockable editor panel, so it lives right alongside your viewport instead of fighting for space on a second monitor. No more alt-tabbing, no more lost windows behind the editor. Capture a window with a single click and it snaps into a tab you can dock anywhere in your layout. It is editor-only, requires zero C++ knowledge, and works out of the box: install, restart, and open Window > Tools > App Docker.
App Docker uses native Win32 window reparenting to host the real application โ not a screenshot or a stream โ so the embedded app stays fully interactive, responsive, and pixel-perfect. When you are done, release it and the window returns to your desktop exactly as it was. "Keep every tool one tab away."
Main Features
โข One-click capture of any open external application window.
โข Fully interactive embeds โ host the real application as a native dockable tab, not a screenshot or a video stream.
โข Dock anywhere in the editor layout, just like any built-in Unreal tab.
โข Capture multiple windows at once and switch between them with a tab bar.
โข Drag tabs to reorder them and organize your workspace.
โข Drag a tab outside the panel to instantly release a window back to the desktop.
โข Frame-accurate alignment keeps the embedded window perfectly locked to its panel.
โข Stays aligned even during modal editor operations, like dragging the editor window.
Auto-Cleanup and Safety
โข Closed applications are automatically detected and their tabs removed.
โข Releasing a window restores its original size, position, title bar, and frame.
โข Closing the panel releases all captured windows back to the desktop.
โข All windows are guaranteed to be released on editor shutdown, so nothing is left orphaned.
โข Captured state survives re-docking the panel elsewhere in the layout.
Configuration
โข Minimized filter โ hide or show minimized windows in the capture menu with a single setting.
โข Settings live under Editor > Settings > Plugins > App Docker, with no setup required to get started.