# How to Maximize a Window on Mac Without Fullscreen

Updated: November 12, 2026

Supercharge: Price: $20, one-time purchase, plus tax where applicable. Platforms: macOS. Get it from: [Setapp](https://go.setapp.com/stp181?refAppID=742&utm_medium=vendor_program&utm_content=button), [Gumroad](https://sindresorhus.gumroad.com/l/supercharge?wanted=true). Free trial: [download](https://sindresorhus.com/supercharge#trial). Requires macOS 26.4 or later. Free older versions for macOS 15: [download](https://sindresorhus.com/supercharge#older-versions).

URL: https://sindresorhus.com/guides/maximize-window-mac

Press Fn+Control+F, or hold the pointer over the green button of the window, and click “Fill”. The window fills the desktop, and does not go fullscreen. To make a click on the green button do this, use [Supercharge](https://sindresorhus.com/supercharge).

## With Supercharge

1. Open the settings of [Supercharge](https://sindresorhus.com/supercharge), and click “Tweaks”.
1. In the “Apps & Windows” section, turn on “Fill window when clicking green traffic light button”.
1. Click the green button of a window. The window fills the screen. Click it again to get the previous size back.

Hold Option while you click the green button to go fullscreen. The tweak uses the Fill action of macOS, so it needs “Displays have separate Spaces” on in “[System Settings › Desktop & Dock](x-apple.systempreferences:com.apple.Desktop-Settings.extension)”.

## Without an app

- **Keyboard:** Press Fn+Control+F.
- **Green button:** Hold the pointer over the green button, and click “Fill” below “Fill & Arrange”. To get the previous size back, Option-click the green button.
- **Title bar:** In “[System Settings › Desktop & Dock](x-apple.systempreferences:com.apple.Desktop-Settings.extension)”, set “Double-click a window’s title bar to” to “Fill”. Then double-click the title bar of a window.

[Apple’s instructions.](https://support.apple.com/guide/mac-help/work-with-app-windows-mchlp2469/mac) These are enough for most people. Supercharge is for when you click the green button by habit and do not want fullscreen.