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What users are saying …
As a luxury brand, high-quality images are a must in our communications. Nevertheless, low loading time is one of the biggest factors for good UX. That's why we've been using compress or die since the beginning of the year to guarantee both.
Tilman Werthschulte, Online Marketing Manager at DEDON GmbH, Luxury Outdoor Furniture
CoD is one of my favorite production tools! The granular controls found in »expert mode« are critical for getting that perfect balance of quality and file size. Thank you SO much, Christoph!
Tom Miller, owner of digital production company Creative Ocean, Inc.
Absolutely amazing compression. Never before have I had so much control over the compression and had such great compression results. Cannot but recommend.
Kevin, irritable bowel syndrome coach at AnatomyFix
We build HTML5 banner paid media campaigns for video game and movie releases. We use Compress-Or-Die for all of our Jpg compression because the output is the best. Period. Lower file size without lower image quality helps us create better ads.
David, owner of digital production company Department 5
Christoph's image compression tool is just brilliant. I have been using it for many years to reduce the filesize of my web graphics and photos. His knowledge about image compression is absolutely stunning. If you thought your image size is already small give compress-or-die a try. You will be impressed.
Timo "Ostrich" Strauß, Creative Online Marketer at ostrich.de
I've been building conservation-oriented websites for over ten years. The difference between this site and all the others I had used is incredible! The bars allow me to fine-tune compression levels and work to find the perfect compression level before hitting that download button. And the quality is incredible!
Jon Hakim, Web Developer at wildcolumbia.org
COD helps compress hero banner images on our website and blog posts. The size reduction function helps us keep quality image resolution and reduce page loading times, thereby improving UX on our website.
Esther, Director at Exodus Beauty
Whenever you need to crush your file down, especially PNGs I am using compress-or-die. It is very useful when you have to fulfill strict file-size requirements.
Elmar Kirschner, Team Lead Digital Campaigns at .NFQ | Digital Creatives
ArticleThe big image compression tool comparison
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
ArticleFinally understanding JPEG
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
ArticleFinally understanding PNG
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
That's me
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.
You would be highlighted here and would no longer see any ads.
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. 😔
The compression problem seemed to affect very few visitors and should be solved now. #CompressOrDie
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.
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.
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.
