9 Free Image Compression Services in 2023

For any webmaster, the loading speed of the site is the most important, as it affects the behavioral factors and, as a consequence, the ranking of the resource in search engines.

Therefore, image compression services have been and remain relevant, especially since they are free. Those are selected in this review.

Some of them have their own API (Programming Interface) – you can add them to your site and they will automatically compress all the images that upload to the server.

I hope this information on my affiliate programs blog will be useful to you, as well as everything that is published on my blog about making money on the Internet.

All services allow you to compress images online, which means you don’t have to install anything on your computer.


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MY CHOICE! Free image compression service where you can compress up to 20 photos at a time: easy to work with a large number of files. Before downloading you can set the degree of compression: from minimum (5-7%) to maximum (up to 97%).

The stronger compression is, the darker the picture will be. When quality decreases to a value of “30” (compression at 90%+) too much noise appears in the picture. We recommend that you keep this in mind.

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Optimizilla respects your privacy: all data is deleted from the server within one hour after you close your tab.

The interface is simple and easy to use.

Does not require registration.


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This free image compression service has almost the same functionality as the previous one: allows you to reduce the size without loss of quality, works with WebP, PNG and JPG formats.

The only difference is that tinypng focuses on changing the PNG format from a 24-bit image to an 8-bit image by reducing the number of colors.

A search engine will notice the difference, but the human eye will not. The picture itself becomes noticeably lighter: it saves up to 60-90% of disk space.

API – yes.

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You can perform the operation several times to reduce the image to a minimum. But in this case the image cannot be opened in photo editors, as it will be displayed incorrectly due to the lack of colors.

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Does not require registration.


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Works with the following file types: JPG, PNG, GIF and PDF.

The maximum image size is 2 MB in the free version, with no limitations in the paid account.

This compression service for images has three compression modes: Normal (lossless, removes metadata), Aggressive (compresses pixels, thus slightly reducing picture quality and almost halves the weight), and Ultra (compresses up to 80-90%, but quality can suffer).

After registration, you can change the height and width of the picture and leave the EXIF-data.

If you do not like the result, you can roll back to the original state. All information about them will be stored on the Imagify server (you can disable this option if you like).

The tool is available as a web service and as a plugin for WordPress. The developers plan to provide connectivity to PrestaShop, Magento, Shopify and Joomla. You can use the Imagify API to set up the integration yourself.

Requires registration.


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It is interesting because it is available for several operating systems at once – as a web version: MacOS, Windows, Linux.

As well as a separate application specifically for MacOS.

There is an API, for a fee.

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Free and open-source MacOS software. One of the key advantages of the tool is fine-tuned optimization. Lossless compression removes EXIF data (camera serial number, GPS position, etc.).

When lossy compression is enabled, the user can select compression parameters himself: shrinking to specified sizes, grouping pixels, etc.

No registration is required.



Supports JPG, PNG, WEBP, HEIC.

With this free image compression service you can resize your picture and reduce its weight by 70-90%. Even after compression the quality of the picture is good – there is no noise and unnecessary sharpness. You can change the resolution of the picture without changing its weight.

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There are tools for editing: cropping and rotating images. The Transparent Backgrounds option will remove a certain color from the picture: it’s easy for subject people who want to remove the background.

There is an option of mass uploading.

No registration required.


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It supports PNG, JPG, JPEG, GIF, TIFF with a maximum image size of 50 MB.

Among the obvious additional features of the service is the option to remove the EXIF-data.

Preview – no. You can only immediately download to your device.

Set the degree of compression is not possible: the service selects the best option.

No registration is required.


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Supports PNG, JPG, SVG, GIF, WebP with a maximum image size of 10 MB.

It uses 3 types of compression.

This free image compression service Compressor does not provide batch processing of images and there is no way to change the image resolution.

Preview – the same absence as on the platform above.

Does not require registration.


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The solution allows you to compress multiple images at once: you can upload a ZIP archive with all the images to be compressed, you can import from Google disk or from the cloud storage Dropbox.

And you can also change the size of the image.

Preview – no.

API – yes.

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Offers 100 megabytes per IP for free. Turn on a VPN and use it for free. Although there are more loyal options above.

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Does not require registration.


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It works only with JPEg and JPG formats.

You can set the exact compression level. For the web the value 80 under “Compress Image” is sufficient.

In addition to direct compression service jpeg-optimizer allows you to immediately change the size of the image.

Does not require registration.

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