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1Piece free download for Mac


Version 3.1.1

Suite of features to improve the usability of your Mac.

Based on 1 user rateRead reviews & comments
Absolutely Free

1Piece overview

1Piece includes many features to improve the usability of your Mac. Window List that displays the list of all your open windows, a feature that switches the Space or the active window by using Hot Corner, a feature that resize and reposition the window and so on.

  • Window List: Display the list of all your open windows, and you can switch to the window. And you can close the window, or move the window to another Space.
  • Desktop Windows: Display the thumbnail list of all windows on the desktop, and you can switch the active window. And you can resize and reposition the window, or move the window to another display.
  • Hot Corner: You can switch the Space or the active window by scrolling or clicking on Hot Corner.
  • Mouse Trigger: You can resize and reposition the window by scrolling or clicking on the window's title bar or the window's control button. You can switch the active tab by scrolling on the tab bar.
  • Window Management: You can resize and reposition the window or move the window to another display by using hot keys, contextual menu or snap.
  • Terminate App: Terminate an app (in the Dock) when the last window of the app is closed.
  • Hide / Show Dock: Automatically toggle "Automatically hide and show the Dock" when switching apps.
  • Adjust Windows: Automatically adjust the size and position of windows when switching apps.
  • Deactivate App: Deactivate an app when the last window on the desktop of the app is minimized or closed.
  • Press Modifier Key Twice: Execute a function in 1Piece, Launch or activate an app, Open a file or directory, Execute AppleScript or Automator workflow, by pressing a modifier key twice.
  • Contextual Menu of App Menu Bar: Show contextual menu of App Menu Bar by using a hot key. And you can execute the menu item or AppleScript quickly by registering it to Favorite.
  • Previous Window: Switch to the previous active window by using a hot key.
  • Favorite Window: You can quickly switch the window by setting it to Favorite Window.
  • Send Window Backward: Send the active window on the desktop backward, or cycle windows on the desktop by using a hot key.
  • Recently Minimized Window: Deminimize the recently minimized window by using a hot key or menu.
  • Focus Window: Focus the window on the left, right, top, bottom or behind the active window by using a hot key.
  • Quit All Apps: Quit all (or some) running apps.
  • Reboot Apps: Reboot running apps.
  • Other : Screen Shots, Hide All Apps, Move the mouse cursor, Hide the mouse cursor, Warp the mouse cursor, QuickTime Player Extensions.

What’s new in version 3.1.1

Updated on Aug 17 2021

Version 3.1.1:
  • Add "Limit the height of the thumbnail list" to "Advanced…" in Desktop Windows.
  • Fix minor bugs and change some specifications.





10.5 MB

Developer’s website




App requirements

  • Intel 64
  • Apple Silicon
  • Mac OS X macOS 10.12 or later
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(0 Reviews of )
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Aug 20 2021
Aug 20 2021
Version: 3.1.1
If other window managers don't have enough customizable options for you then you've come to the right place. This has an almost Windows-like (overwhelming) number of customizable options so you'll be able to tweak it to your heart’s content. Not for the casual user. I mean, you can install it and leave everything to the defaults and never touch the preferences. This is where a GUI for the GUI would come in handy; maybe one day developers will be enabled to make that.
Mar 25 2018
Mar 25 2018
Version: 1.0
Looks like an interesting possibility to enhance usability. It looks like the developer put a lot of work into this and has a useful webpage that better describes the options.I plan to try it when I have time. As of the posting of this message I found 2 issues with the developers website: - The email address for support is a graphic which means it can't be copied as an address to paste into an e-mail. the address must be typed in manually. Perhaps the developer is using this approach to avoid junk mail, but it is not user friendly. - The only donations the developer will accept is in cryptocurrency. That filters out a lot of potential donors that who are clueless about cryptocurrency, or do not trust it. I suspect that few users will establish a cryptocurrency account or take the effort to learn about it just to provide the developer with a donation. This will likely limit his donations.
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