Png Image Optimizer. Online image optimizer gif jpg and png 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.
This technique is called quantization. It will update png files or converting bmp gif or tga files to the png format using simple drag and drop. Punypng is the best option for people who want to reduce the image size with zero reduction in quality.
It reduces the image size up to 34 but if you want to compress it more then you have to purchase the pro version.
Furthermore you can easily convert from one image type to another. Png compression and optimization tool to compress png images into png 8 format with transparency support. In the above image the file size is reduced by more than 70. It will update png files or converting bmp gif or tga files to the png format using simple drag and drop.