I'm only looking for a tool that can be run as a build step and that losslessly squeezes a few bytes from the images. ImageOptim makes the process simple with. (tested on M1 CPU, so YMMV) The latest version performs LZW encoding of frames in parallel, and avoids using most of gifsicle codebase except the lossy LZW. ![]() The Lite version allows you to optimize up to 20 images a day for free, and costs 19.99 to remove the limit. ImageOptim Take the guess-work out of your image compression, shrinking file sizes shouldnt be rocket science. With the -fast flag gifski is now about as quick as ffmpeg in wall-clock time, but still generates files that are smaller and look better at the same time. I am aware that most savings come from the JPEG quality parameter, and that it's a rather subjective measure. For my JPEG files, I optimize them with the desktop JPEGmini app, available for both Mac and Windows. After investigating more, I found that the EXIF data was still part of the image, and the thumbnail was 3 kB after removing the metadata.Īnd beyond that - is it possible to further optimize JPGs losslessly? The PNG optimizer tries different compression strategies, random initialization of the Huffmann encoding etc. ![]() Do you know of any tools (preferrably command-line) to automatically and losslessly optimize JPEGs that I could integrate into our build environment? For PNGs I'm currently using PNGOUT, and it generally saves around 40% bandwidth/image size.Īt the very least, I would like a tool that can strip metadata from the JPGs - I noticed a strange case where I tried to make thumbnail from a photograph, and couldn't get it smaller than 34 kB. ImageOptim has a number of preferences you should explore before you get started. svgcleaner is no longer maintained and has known cases where it breaks SVGs.
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