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.
What users are saying …
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
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
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.
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
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
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
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
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.
Thanks, Boris!
Thanks, Compress-Or-Die!
Thanks, Jessica!
Thanks, Tom!
Thanks, Jimmy!
Thanks, Greg!
Thanks, Rob!
Thanks, Pablo!
Thanks, Alexandre!
Thanks, Kevin!
You would be highlighted here and would no longer see any ads.
News
I just added a gamma correction to 2.2 in compress-or-die.com . Before this correction, the image from this page, for example, generated the apple and not the pear: sudonull.com/post/128633-An… Nice test image for a lot of image compressors :)
... and another new, tiny feature at compress-or-die.com . If you use the JPEG, PNG or WebP compressor you can now rotate the image in 90 degree steps. Useful, if you have turned the smartphone while taking a picture.
Just a little UX update on compress-or-die.com . Instead of being able to specify the size only via percentages, it is now possible to set exact pixel values for the height or the width. The other value is calculated while maintaining the aspect ratio.
My favorite part of this very good blog post is where Tim cites this chart and infers that “everything else” is mostly images. We know ~half of the web's bandwidth is images; apparently ~½ the web's memory use is images, too! twitter.com/tkadlec/status…
Just for information: Today there was a longer (about one hour) break at Compress-Or-Die, because I added two more CPUs due to the load. Including the backup snapshots it took a bit longer than expected. But now we can continue with more power. 💪 youtube.com/watch?v=j1BNcS…
