Simple image optimizer and file size reducer
ImageOptim is a free and really simple to use image optimizer that works well to quickly reduce the file size of PNG, JPEG, and GIF image files. The interface doesn’t get any easier, you just drag and drop images into the app and they’ll be optimized, whether it’s one picture or 15 it works the same.
The app works by finding the most suitable compression parameters for the image file type, and then it further reduces file size by removing unnecessary color profiles, EXIF data, and comments from the image itself.
Check it out! Optimization works well and it’s a lot faster than opening something like Photoshop.