Compress-Or-Die
The most advanced free online compressor used by professionals to reduce the file size of their images to a minimum. Compare it now with any other app.
Articles
The 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.
Finally 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.
Finally 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.
That's me
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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.
Many thanks to the MINISTRY Group for hosting COD.
Image Compression News
🎥 New talk! Let's make images smaller… ➡️ How lossy & lossless codecs actually work. ➡️ Each codecs pros/cons. ➡️ Advanced encoder settings to get the most out of image compression. Watch here: youtube.com/watch?v=F1kYBn…
From now on, I will no longer reply to contact mails on Compress-Or-Die in which I am insulted, accused of criminal activities or told that I should implement certain things faster and not lie around so lazily. Maybe people should remember that behind many ... (1/2)
recreational projects there are real people who do this to do good for others and because they enjoy dealing with a certain topic without charging money for it. (2/2)
The bug with the verification introduced yesterday, whether a user is really a human being, should be fixed now. If you are still having problems with it and are trapped on the "Verifying you are human ..." page, please reply to this tweet. #compressordie
At the moment there seem to be problems with the verification introduced yesterday, whether a user is actually a human being. 🐞 I'm working on fixing the bug as soon as possible. #compressordie
