oomol-lab/closeup

CloseUp is a free macOS app that adds window control buttons directly to the Mission Control overview, the built in screen that shows thumbnails of all open windows. Normally Mission Control only lets you click a thumbnail to switch to that window. CloseUp lets you close, minimize, maximize, hide, or quit a window right from that overview, without switching to it first. Hovering over a window thumbnail reveals a small set of buttons, and every action also works from the keyboard, using the same shortcuts macOS already uses elsewhere, such as command W to close or command Q to quit, applied to whatever window is under the pointer. There are also batch shortcuts to close all windows, minimize all windows, or hide every app except the one under the pointer. All shortcuts can be remapped in the app's settings. The app supports nine languages that can be switched inside the app itself. CloseUp is described as a passive overlay: it sits quietly in the menu bar with no Dock icon, does not interfere with Mission Control's own keyboard handling, and only reads and acts on windows through the macOS Accessibility permission. It does not record the screen. It requires macOS 14 or later and ships separate builds for Apple Silicon and Intel Macs, and it updates itself automatically through signed, notarized releases, with an optional beta channel. The app can be installed by downloading a disk image from GitHub releases or through Homebrew. Building it from source requires Xcode and the xcodegen tool, since the Xcode project itself is generated from a configuration file rather than checked into the repository. The project is written in Swift and is released under the GPL-3.0 license.