Slotter

I built Slotter to bring a saved desk back in one click: it opens each app into its own zone across your monitors.

Download for Mac Download for Windows Source on GitHub

Updates

Release alerts on X: follow @kalkmancode to hear when a new version is out.

Slotter’s workspace designer on a Mac: the Coding workspace with Terminal, Safari, Notes and Music in zones on the built-in display, a virtual desktop called Admin beside it pinned to Desktop 2 with Mail and Calendar, a dashed plus for adding another desktop, and a benched layout called Reading below.

What it does

Save named workspaces: each one places your monitors’ zones and can open a chosen app in each zone.
Launch a workspace to open its apps and place them in their zones; Slotter tells you how many landed.
Leave a zone without an app and drag a window into it to snap it there.
Snap the front window to halves, thirds, corners or the next display with keyboard shortcuts.
Pin a monitor plate to a virtual desktop and give it its own zones, then save that layout as a setup to load on another desktop.
Slotter updates itself: it checks once a day and asks before it installs anything.

Things to know

macOS permissionAccessibility is needed to move other apps’ windows. Slotter never reads window contents or keystrokes.
Windows permissionSlotter asks for administrator permission once so it can move elevated windows, such as Task Manager or an admin terminal.
Windows signingThe executable is signed by Toby Kalkman using Certum open source code signing. SmartScreen may still warn on a new download.
Your configurationWorkspaces live in a plain profiles.ini file that you can edit by hand.
UpdatesSlotter checks for updates once a day and asks before installing one. A check sends no system information, and you can turn it off in Settings.
Signed and notarisedDeveloper ID, notarised by Apple

FAQs

What should I know about virtual desktops?

Virtual desktop detection uses undocumented operating system data. An OS update may break it; Slotter reports the feature as unavailable and leaves the rest unchanged.