How To Resize Images on Mac, Windows, and Chromebook?

At some stage in our digital experiences, we'll need to adjust image sizes. Whether you're on Windows, macOS, or a Chromebook, you can resize images easily using various methods. Luckily, these ways are all pretty straightforward.

In this guide, we focus on tools that Windows 11, macOS Sonoma, and ChromeOS users can easily access for resizing images. Let's explore how to resize images on these operating systems.

Windows 11

When using Windows 11 computers, we like to use the built-in Photos app. Here's how you can change the size of a picture in Photos on Windows 11:

• Click the image, then choose “Open with” and pick Photos.
• Next, click the three dots symbol found in the top-right corner of the app.
• Click on Resize from the options.
• A small window will pop up. Pick one of the preset sizes displayed on the left side. 
• If none fit, opt for Custom dimensions for a specific size. 
• If you want to keep the proportions the same, tick the box next to Maintain aspect ratio.
• As you type a number into one box, the other box will change accordingly. 
• If you don't care about the proportions, skip ticking the box and input numbers in both boxes.
• Click on the button labeled “Save resized copy” in purple.

macOS

If you're on a Mac computer, you can change the size of your pictures using a tool called Preview. Follow these steps:

• Click the image with your right mouse button, then choose Open.
• Go to the menu bar and click Tools.
• From the drop-down menu, pick Adjust size.
• Put in the measurements for width and height
• Click on the OK button in blue to approve the new dimensions.
• Save the changed image by picking File from the menu.
• Click on Save.

ChromeOS

• First, right-click on the image. Then choose “Open with Gallery.”
• Next, click the “Rescale” button at the top.
• After that, type in the width and height you want.
• Finally, hit the “Save” button to keep changes. 

Pixlr X 

A handy online tool, lets you easily tweak your pictures for free. To resize a picture with Pixlr X:

• Go to Pixlr X.
• Click on the blue “Open image” button and pick your picture.
• Tap on the “Layout and Template” button. 
• Click on Smart resize in the Layout menu.
• When the Smart resize screen pops up, you can type in the width and height you want.

Follow these steps to complete the editing process:

• Make all necessary adjustments.
• Click on the Apply button.
• Locate and click the Save button.
• Enter the file name.
• Choose your desired file format and adjust quality settings.
• Click the Save button.

Remember, you can save your edited image to the Downloads folder. Note that you're allowed up to three free saves per day.

Microsoft PowerToys

First, you need to install Microsoft PowerToys, which includes handy tools like Image Resizer. Since PowerToys isn't built into Windows 10, you'll have to download it separately from GitHub.

Easy Image Resizing

After installing PowerToys, right-click on an image and choose the new “Resize pictures” option. This will bring up the Image Resizer pop-up.

In the pop-up, you can select preset sizes or type a custom size. Values can be in inches, centimeters, or percentages. Usually, the default settings work fine.

Image Resizer keeps the aspect ratio the same when you enter a custom width or height. For instance, if you need pictures on TechWiser to be 675 pixels wide, just enter the width, and the height adjusts automatically.

Batch Resizing

You can resize multiple images at once with Image Resizer's batch resizing feature. Just select the images you want to resize, then right-click and choose “Resize pictures.” You can also edit predefined templates in Image Resizer.

To do this, find the PowerToys icon in the bottom right corner of your screen, right-click it, and select “Settings.” In the PowerMenu settings, go to the Image Resizer tab, where you can customize default resize options or add new dimensions.

Consider Other Options

If you need alternatives, there are a few worth checking out. Microsoft's Image Resizer is now part of Microsoft PowerToys, based on Brice Lambson's original open-source tool “ImageResizer,” which is no longer available.

Another choice is “Resize Image” from the Microsoft Store, offering batch resizing with a different method. You might also try ImageMagick, a command-line tool for batch resizing, compressing, and converting images.

Resizing images is now quick and easy. With Microsoft PowerToys and its Image Resizer tool, you can resize images in just a few clicks, saving you time and effort.