ImageAlpha greatly reduces file sizes of 24-bit PNG files (including alpha transparency) by applying lossy compression and conversion to a more efficient PNG8+alpha format. Such images are compatible with iOS, all browsers, and even degrade well in IE6.
Your photos on a diet! Reduce the file size of your photos by up to 5x, while keeping their original quality and JPEG format!
What does TinyPNG do? TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colors in the image, fewer bytes are required to store the data. The effect is nearly invisible but it makes a very large difference in file size!
Smush.it uses optimization techniques specific to image format to remove unnecessary bytes from image files. It is a "lossless" tool, which means it optimizes the images without changing their look or visual quality. After Smush.it runs on a web page it reports how many bytes would be saved by optimizing the page's images and provides a downloadable zip file with the minimized image files.
SuperPNG is a free Adobe Photoshop plug-in for using PNG ("ping") files.
What is RIOT ? Radical Image Optimization Tool It uses with a side by side (dual view) or single view interface to compare the original with the optimized image in real time and instantly see the resulting file size. It is lightweight, fast and simple to use, yet powerful for advanced users.
PNGOUT is a tool which can optimize PNG files created by other programs.
Image Optimizer lets you easily optimize your gifs, animated gifs, jpgs, and pngs, so they load as fast as possible on your site. Furthermore, you can easily convert from one image type to another. Upload Size limit: 2.86 MB
SuperGIF is our newest application for Macintosh and Windows and a very different kind of tool. It is the very first of its kind, and such a simple, easy tool to use that it is difficult to write about. There is little to say in describing SuperGIF past what it does - effortlessly make all your GIF images and animations smaller.
Kraken is a robust, ultra-fast image optimizer. Thanks to its vast array of optimization algorithms Kraken is a world ahead of other tools. Want to save bandwidth and improve your website's load times? Look no further and welcome to Kraken!
PunyPNG is a PNG compression and image optimization tool
