What programs besides Photoshop are good for saving and optimizing images for web?
ImageMagick is a great tool to use that would require some understanding of how a terminal is to be used. However, the documentation is done very well so you can reference a lot of examples.
The area you might find useful is Command-Line Options and if you want you can use their tool: ImageMagick MagicStudio.
There was an article by Creative Blog that covered this back in January called: “The 18 best image file compression tools“
Source : Link , Question Author : Nina , Answer Author : DᴀʀᴛʜVᴀᴅᴇʀ