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

JPEG XLCompressor

Converts your image files into the next-generation image format JPEG XL 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

Repairyour image

Repairs and fixes your corrupted and broken PNG images.

Repair your image

  • Made in Germany
  • EU GDPR compliant

What professionals 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

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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

I assume the Chrome team is preparing a more detailed rationale for their decision on JPEG XL. It would have been better to first collect all the evidence and arguments, involve internal and external experts and the community in general, agree on what the facts are and ... (1/3)

2022-11-05119Asse, Belgium

At the moment something worrying is going on regarding the hope of the image compression "JPEG XL". Because it's a bit much for a tweet, I've summarized the latest here:urz zusammengefasst: patreon.com/posts/google-k… #jpegxl #chrome

2022-10-3112Bielefeld, Germany

TL;DR:
Overall, for the same visual quality, JPEG XL is ~17% smaller than AVIF, which is ~17% smaller than WebP, which is ~17% smaller than JPEG. https://t.co/TkTAKorMS9

TL;DR: Overall, for the same visual quality, JPEG XL is ~17% smaller than AVIF, which is ~17% smaller than WebP, which is ~17% smaller than JPEG. twitter.com/jonsneyers/sta…

2022-06-032247Asse, Belgium

Finally the JPEG-XL compressor can be found at https://t.co/0VbnRtFKG8 . 🚀 Even though the file format is still in the process of being implemented in all browsers, now is a good time to experiment with it. Looking forward to more ideas on this and your feedback. https://t.co/6JFoADZF2b

Finally the JPEG-XL compressor can be found at compress-or-die.com/jxl . 🚀 Even though the file format is still in the process of being implemented in all browsers, now is a good time to experiment with it. Looking forward to more ideas on this and your feedback.

2022-04-05311Bielefeld, Germany

Hey guys, there is a new tool: https://t.co/ywqI1P7ya5 . 🔨 Finally I was able to launch a tool that solves most of the PNG errors I got from you 🤗. I am proud and excited about your feedback. https://t.co/Vy5Ewni8ap

Hey guys, there is a new tool: compress-or-die.com/repair . 🔨 Finally I was able to launch a tool that solves most of the PNG errors I got from you 🤗. I am proud and excited about your feedback.

2022-03-2125Bielefeld, Germany