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How to compress photos while maintaining the best possible quality

Image Resizer resize

Have you taken pictures with the reflex or with your smartphone too heavy to be uploaded on social networks without waiting? Did you take screenshots on your PC but the images obtained are too large for your site or for your blog? Maybe you don't know but you can reduce the size of the photos without losing too much quality and above all without losing the proportions generated by the shot or the screen.

How to compress photos

In this guide you will see the best programs, online services and apps to reduce the size of one or more photos for free, quickly reachable from the index below:

I advise you to use i programs, if you have to resize many photos, which will save you time in uploading photos online and then download them again in case you use the sites. If, on the other hand, you have to compress a few photos, I recommend using online services (sites), so you will also avoid installing programs. If instead you use a smartphone or tablet, you will find the applications for each operating system.

WHAT IT WORKS TO COMPRESS PHOTOS (for the curious ones)

For those who want to deepen, I briefly explain how these sites and programs reduce the size of a photo, otherwise you can go directly to the next paragraph.

To save the space occupied by a photo, we act on two factors, the compression(for some image formats such as JPG or JPEG) and the resizing (in English compression is resize).

There compression does not change the number of pixels from which a photo is composed, for example if a 1920 × 1080 pixel (length x width) photo of this size will remain the same but it will modify the data compression, a value that can go from 0 to 100 where 0 maximum compression which leads to minimum quality and little space occupied and 100 without compression and therefore maximum quality but also a large amount of space used. In this link you can see perfectly what we are talking about "quality jpeg based on compression", even if the English article you only have to try, under the photos of this article to see how they are seen for example in compression between 0-7 and 93 -100. Usually the ideal value between 60 and 80, then it depends on you and how the photo will look.

The resizing instead it changes the number of pixels of which a photo is composed, for example bringing it from 1920 × 1080 to 960 × 540 (half). This means that we will be able to zoom the photo less since it now consists of fewer points.

The programs and sites listed below, automatically choose compression so that it is not poor, so don't worry about this, what you can do you choose the resizing you prefer.



With this extension for Windows explorer you can resize photo size simply by using the right mouse button on the image or photo whose size you want to reduce and using the voice Resize pictures.

Image Resizer resize

There is currently no faster method for compressing photos. You can adjust the settings of this tool from time to time, so that you always get smaller images.

Image Resizer size

You can download this handy tool for free using the link below.

DOWNLOAD |Image Resizer

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<img class = "lazy lazy-hidden aligncenter wp-image-32278" data-lazy-type = "image" src = " jpg” alt=”xn convert” width=”454″ height=”272″ data-lazy-/>

This free program allows you to reduce the size of photos quickly and easily, even if you have more shots to be subjected to the process. First of all upload the images or the folder using the buttons on the bottom left (Add file or add folder), then go to the tab Actionsand use the button Add action -> Image-> Resize.

<img class = "lazy lazy-hidden aligncenter wp-image-32279" data-lazy-type = "image" src = " jpg” alt=”xn convert” width=”451″ height=”387″ data-lazy-/>

A new action will be added inside the window; here you can decide the final dimensions of the photos (Suitable) or choose to indicate only the dimensions of one side (Longer side or shorter side); the program will take care of the rest.

<img class = "lazy lazy-hidden aligncenter wp-image-32280" data-lazy-type = "image" src = " riduzione.jpg” alt=”xn convert” width=”450″ height=”291″ data-lazy-/>

Once this action is configured you can use the items on the other tabs to choose the destination folder of the converted files or the image format (if you intend to use the JPG for example starting from PNG or other formats).

If you are interested in using this program to reduce photo size, you can download it for free from the following link.

DOWNLOAD | XnConvert


<img class = "lazy lazy-hidden aligncenter wp-image-32282" data-lazy-type = "image" src = " pictures.jpg” alt=”FILEminimizer Pictures” width=”450″ height=”378″ data-lazy-/>

Another very useful program to reduce photo size on Windows FILEminimizer Pictures. This program optimized to reduce the size of photos in all supported formats without unduly compromising image quality; the files that will come out of this program will be enormously lighter without losing proportions!

Use it very simple: upload your photos with the button Open file present at the top left of the program window and then adjusts the compression intensity with the scroll button present at the bottom of the program.

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Once the desired compression level has been set, just press the button Optimize files present at the top to start the compression process. The photos will be compressed with different percentages based on the resolution and the uploaded file format; in the test carried out for the article, it managed to reduce the size of a screen made specifically for this test by 34%.

<img class = "lazy lazy-hidden aligncenter wp-image-32284" data-lazy-type = "image" src = " compressione.jpg” alt=”FILEminimizer Pictures” width=”448″ height=”303″ data-lazy-/>

If you intend to use this program to reduce photo size, you can download it for free from the following link.

DOWNLOAD | FILEminimizer Pictures

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Don't want to use any program to reduce photo size? In this case you can rely on the service offered for free byWeb Photo Resizer, reachable at the following link.

LINK |Web Photo Resizer

<img class = "lazy lazy-hidden aligncenter wp-image-32287" data-lazy-type = "image" src = " Resizer_risultato.jpg” alt=”Web Photo Resizer (online)” width=”452″ height=”315″ data-lazy-/>

Just click on Resize Photos Here to open the management software offered by the site, click on Choose file and later on Upload file to upload the chosen photo. The basic settings are more than enough for fantastic results! To download the reduced photo, just click on the item Download this image available under the resized image.

<img class = "lazy lazy-hidden aligncenter wp-image-32288 size-full" data-lazy-type = "image" src = " /Web-Resizer-in-azione.jpg” alt=”Web Photo Resizer download image” width=”407″ height=”178″ data-lazy-/>

Other sites and programs to compress photos

Not satisfied with the programs and the site recommended in this guide? You can find the alternative you like in the list below, so you can easily reduce photo sizes.

App to compress photos

If you want to directly compress photos on your smartphone or tablet with Android or iOS operating system, here are the apps that I recommend:

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