How To Shrink JPEG File Size Without Losing Quality Scott Ellis May 13, 2012 Tip A Day 3 Comments Tip A Day #21 Image optimization technologies have come and gone over the years and have, for the most part, steadily improved. Last year I discovered JPEGmini.com and have been thoroughly impressed at how well their service works. Best of all, it’s free! As always, start with the highest-quality image you can find. Go to the site and upload a single image or groups of images and let their algorithm work its magic. The results are impressive. I’ve used the service for a ton of images and can usually loose 50 – 70% of an image size with no perceptible loss in quality. I don’t know how they do it but I love it. They even give you a little sliding preview pane so you can see the before and after. Test it out and see if you can tell the difference. While the service is free it’s only for JPEG images. They also just released an app in the MAC store so if you want to run it locally, you can pick that up for $19.99. I’ve used a lot of image compression technologies but this is the first one in a LONG time to really impress me. Need help understanding print vs web images or asking questions like “what is dpi?” Learn something new every day! Send me suggestions – Twitter @vsellis Google+ gplus.to/scottellis. 3 Responses Maki May 13, 2012 The sound is faulty. I can hear it but it’s not good. AP May 14, 2012 You can do all those optimizations by yourself with one command line tool : jpegtran (working on Linux, MacOS and Windows). A little “command line magic” is involved but it’s very simple. See by yourself : http://www.technospot.net/blogs/batch-optmize-jpeg-images-using-jpegtran/ Shawn Weisfeld May 22, 2012 I have been using SmushIT by Yahoo (http://www.smushit.com) for years it can process JPG, GIF, and PNG images that are up to one megabyte in size.