Best image compression software for Windows 10 [2020 Guide]


Milan Stanojevic
by Milan Stanojevic
Deputy Editor
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image compression tools

We store images on our hard drive and online, but in order to save space, sometimes we need to compress our images. Image compression is especially important if you’re uploading your images online and if you have limited online storage. Compressing your images is fairly simple, and today we’re going to show you some of the best image compression software for Windows 10.

What is the best image compression software for Windows 10?

NX Power Lite Desktop (recommended)nxpowerlite desktop screenshot

NXPowerLite Desktop 8 shrinks your JPEG, PNG, TIFF, JPG and other popular image formats but also your Word, Excel or PowerPoint documents. Files remain in their original format and there is no need to unzip before using them. It also allows you to customize the balance between quality and compression ratio, which is a very useful feature for images.

It’s a user-friendly tool: just select the file you need to minimize, choose a compression level and click the ‘Optimize’ button.  You can also optimize file size from within Windows Explorer and Microsoft Office programs, or choose to automatically optimize email attachments as they are sent.

You can  use NXPowerLite Desktop free but if you need to have acces at more sophisticated features to accomplish your work – you can buy the full version.


FILEminimizer (recommended)

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FILEminimizer Pictures is a simple and free application for image compression. First thing that you’ll notice when you start this application is its simple and a bit outdated interface. In order to compress your images, you just need to find them and add them to the application.

There’s a useful feature available that will scan certain folders, or even an entire hard drive and allow you to add pictures to the FILEminimizer Pictures tool. Regarding the configuration, you can choose between three presets or you can set the custom level of compression. You can also choose an output directory or add suffix or prefix to compressed images.

This is a simple tool for image compression, and its biggest flaw is an outdated user interface. Speaking of the user interface, there’s no preview window, so you won’t see any changes until you compress your images. FILEminimizer Pictures is a simple tool, and if its outdated user interface isn’t a problem for you, be sure to try it out.


Caesium Image Compressor

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Caesium Image Compressor is an open source image compressor. In order to compress your images, you simply need to add them to the application and set the desired options. If you want, you can also add entire folders directly to Caesium Image Compressor.

User interface is split into three columns. The first column is Compression Options and from there you can set the image quality. You can also choose between several formats such as JPG, PNG and BMP. Unfortunately, you can’t change image quality for PNG or BMP images. If you want, you can use the same quality for all images on your list.

Next column is in charge for resizing. From there you can set absolute or relative new size for your images. If you want, you can also apply the same settings for all images on the list. Of course, there’s an option available that will let you keep your aspect ratio.

The last column is in charge for output folder. You can set a different output folder for your compressed images, or you can keep them in the same folder. If you want, you can also add a suffix to your images so you can easily distinguish them.

Even though this is a simple application, it has its share of flaws. In order to see new size, compression ratio and quality of the image, you’ll have to check the list of files. We have to mention that the list can be sometimes sluggish, so it can take about five or more seconds for data to update. You can force data to update by clicking the Set Quality button if you don’t want to wait. Even though there’s a side by side comparison, the compressed image preview won’t update automatically unless you click the Preview button, which is also a flaw in our opinion.

Caesium Image Compressor is a great application for image compression. This tool is simple to use and it has all the basic options available. Unfortunately, some users might be turned away by some of its minor flaws. We have to mention that portable version is also available, so you can run this app without installing it on your PC.

JPEGmini

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JPEGmini is a lossless image compressor, and according to its developers, this tool can reduce the file size of your pictures up to 5 times. All your pictures will keep their original format and they will suffer almost no quality loss during compression.

We have to mention that this tool is rather simple, and all that you have to do is to add your images to it, and it will automatically compress them. Keep in mind that by default JPEGmini overwrites the original images with compressed ones, so be sure to change your settings first.

Speaking of settings, we have to say that JPEGmini offers few settings. There’s no quality slider, so you’ll have to rely on application algorithm to figure out the best quality settings for your images. The application does a good job, so you’ll hardly notice any visual changes after compressing your images. In addition to compression, you can resize the images or set a specific output folder for compressed images.

JPEGmini is a simple application that allows you to resize your JPEG images without any configuration. This application will be perfect for basic users, especially with its visually appealing and simple user interface. If you want more advanced options, you’ll have to use a different application. We also have to mention that JPEGmini is available as a free trial. The free version allows you to compress up to 20 images per day, which should be enough for basic users.

FileOptimizer

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FileOptimizer is another free tool that can optimize your images. This application was originally designed for compressing all sorts of files, but you can also use it to compress your images. FileOptimizer comes with a humble user interface, and in order to optimize your images, you just need to add them to the tool. Regarding compression, you can choose between several compression levels.

We have to warn you that by default this application moves original files to Recycle Bin and replaces them with compressed files. Of course, you can turn this option off if you want. There’s no preview window or any advanced settings, which can be a flaw for some users. During the compression process you’ll see the original size and optimized size of each file, which is rather useful.

This tool isn’t optimized for image compression, but if you want to compress your images and other files, this tool can be useful. This application is available in portable format, so you can run it on your PC without installing it.

Mass Image Compressor

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Mass Image Compressor is another free image compression software. Unlike other tools on our list, this one is designed to compress entire image folders. In fact, you can’t add single images to this app, so you’ll have to organize images that you want to compress. After selecting the desired folder, you should be able to change options such as image quality and image size. You can choose between fixed width or set a percent based width for your images.

In addition to changing quality and size, you can also change image format to JPEG or PNG or keep the same file format. You can also save compressed images to a specific directory, or you can overwrite original images.

Mass Image Compressor comes with a preview window that lets you see a sample image. This is a useful feature, but unfortunately there’s no way to toggle between different images, which is a flaw in our opinion. In addition to image preview, there’s also information regarding the file size next to it.

This is a simple application for image compression, but unfortunately this tool isn’t designed for single images. You can’t add individual images to the application, and you can’t see previews or compression results for individual images which can be a problem for some users. Overall, if you have multiple photos what you want to compress, this tool will be perfect for it.

Editor’s Note: This article continues on the next page. If you’re interested in other file compression software, check out our wide collection of guides.