Use the most advanced image compressors for free

Trusted by professionals around the globe to compress their images to a minimum. Compare these tools with any other app.

JPEGCompressor

Converts your lossless PNGs or high quality JPEGs into lossy JPEGs with the smallest filesize possible.

Compress your image

PNGCompressor

Converts your lossless PNGs or high quality JPEGs into lossy PNGs with the smallest filesize possible.

Compress your image

GIFCompressor

Converts your GIFs into lossy GIFs with the smallest filesize possible.

Compress your image

WEBPCompressor

Converts your lossless PNGs or high quality JPEGs into lossy WebPs with the smallest filesize possible.

Compress your image

SVGCompressor

Converts your SVG vector files into SVGs with the smallest filesize possible.

Compress your image

Analyzeyour image

Gives you a lot of information found in the given image (JPEG, PNG, WebP, GIF and SVG).

Analyze your image

  • Made in Germany
  • EU GDPR compliant

What users are saying …

ArticleThe big image compression tool comparison

Logos of compress-or-die, optimizilla, JPEGmini, Compressor.io, tinyjpg, kraken.io

There are a lot of articles about online image compression tools in the net, most of them are very superficial. Usually they end with a simple: "It generates smaller pictures, so it's got to be better."

Learn why such statements are most of the time meaningless, understand the technical background, and find out which tool you should use as of today.

18 min read

Read article

ArticleFinally understanding JPEG

Image of man painting with color

If you always wanted to know how the JPEG compression works under the hood I want to recommend this article to you. It was important to me to write an article that is reasonable for every level of understanding.

Furthermore it contains 7 valuable tricks to reduce the file size of your JPEGs by exploiting the technical functionality of the JPEG compression algorithm.

22 min read

Read article

ArticleFinally understanding PNG

Boy laughing when understand something written in a book

Ever wondered why some of your PNGs are of large file size while similar PNGs are so small?

Since this question comes up so often, I have written a follow-up to my article "Understanding JPEG" to explain the bare necessities of the PNG compression algorithm in layman's terms.

At the end you will also get 7 tips on how to get your PNGs to a REALLY small file size.

15 min read

Read article

That's me

Christoph Erdmann

Hi! I’m Christoph, working as a programmer/developer in Bielefeld/Germany.

Since I was building an advertising tool, I had to learn a lot about image file formats and compression.

This tool is some kind of a by-product and turned out to be my sweet little baby. So have fun using it! I hope it will help you as much as it does for me.

Thank you very much!

With their great support, the following patrons ensure that Compress-Or-Die is kept alive.

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News

The problem that some users can't compress files is a bit more serious than thought. I would ask these users to follow the instructions on the following page: processing.compress-or-die.com/cookie-repair Sorry for the inconvenience. 😔

2022-01-1401Bielefeld, Germany

The compression problem seemed to affect very few visitors and should be solved now. #CompressOrDie

2022-01-0804Bielefeld, Germany

I have seen that some users cannot compress images at compress-or-die.com. I'll take a closer look at that. In the meantime, putting the browser in incognito mode helped me.

2022-01-0700Bielefeld, Germany

Just a small addition on compress-or-die.com/analyze. Now you can see in addition to the estimated quality compared to the standard quantization tables also the value compared to the Photoshop tables. Furthermore, the API examples now also include an example for web-based JS.

2021-12-1602Bielefeld, Germany

Hi all, COD users. Just added in the interface you can change the background of transparent images to better estimate how the image looks on different backgrounds. Also, there is now the ability to sharpen color edges of WebP images, which is close to a JPG 1x1 color subsampling.

2021-11-2203Bielefeld, Germany
News

The problem that some users can't compress files is a bit more serious than thought. I would ask these users to follow the instructions on the following page: processing.compress-or-die.com/cookie-repair Sorry for the inconvenience. 😔

2022-01-14