Effortlessly & intuitively resize & reposition your app windows

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Mosaic is a powerful window manager that makes the repositioning and resizing of macOS apps effortless, transforming multi-window chaos into a productive suite of tools.

STOP PRESS! Mosaic earns 4.5 stars out of 5 from both and Mac|Life magazine!
"Huge kudos to the folks at Light Pillar for one-upping Apple."
- Ian Fuchs, Senior Editor, MacTrast


Seamless macOS Integration - Mosaic has been meticulously designed to feel like an integrated component of macOS - and not like a standalone app. The result is a seamless and intuitive experience that feels as good to use as it looks.

Drag & Drop - Resizing a window is as simple and effortless as drag & drop. Resize and reposition a window simply by dropping it on a Mosaic layout. Mosaic is highly customisable, supporting shortcut keys to apply layouts and control over how and when the layouts panels are displayed.

Fully Customizable Layouts - Rather than limit you to a list of simple preset layouts, Mosaic lets you create any layout you like with a powerful suite of layout creation tools. You can simply paint a layout on a grid or achieve absolute control with numerical constraints.

Streamline Your Workflow - As there is no limit to the number of layouts you can create in Mosaic, you can find yourself with dozens of layouts - many of which you only need for specific scenarios. With Layout Groups, you can organise your layouts to suit specific workflows and by switching between them, filter out those you don’t need.

Multi-Screen Support - Mosaic is designed to work beautifully with multiple screens and varying resolutions.

Touch Bar Support - With a Touch Bar enabled MacBook Pro, all your layouts are right at your fingertips. If you are a keyboard junky but have too many layouts to realistically assign keyboard shortcuts to all of them, Touch Bar is exactly what you need.

Mosaic Remote Control for iOS - Don’t have a new Touch Bar enabled MacBook Pro? Don’t worry - just download the free Mosaic Remote app and turn your iPhone or iPad into the ultimate workstation accessory.

Layout Extras:

Window Capture - If you need to capture the current window as an image, you can easily copy it to the clipboard or save it to your hard disk.

Quick Positions - Take the current window and just move it into any of the screen corners or centrally onto a screen edge.

Quick Layout - When you find that you don't have the layout you need, use Quick Layout to define one on the spot.
Get Mosaic on Setapp
With Setapp subscription you don’t just get Mosaic, but an outstanding selection of top-notch applications. Setapp has apps for every job and it only takes a few clicks to find the ones you need. Plus, the app collection keeps growing all the time.
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Free 30-day trial. No credit card required. Cancel anytime.