Smush it is a new tool that allows web programmers to optimize their images online. This is a tool from Yahoo Developer Network Performance team.
Smush it optimizes images with out losing the quality of the images, you will get the report of how many bytes you can save by optimizing your images. You can download the optimized images in zip format to replace with your old bulky images.
Smush it can be used online by uploading images or by entering URLs of the images you want to optimize, but the most convenient way for web developers is the smush it firefox addon. This is one of the useful firefox addon for a web developer. Once installed the addon will show a small icon in the status bar. To optimize images of your web site open your site and click on the icon and select ‘Run Smush it’, it will open a new tab and will do the analysis and gives you a detailed report with the details of how many bytes you are going to save in a easily understandable way. Also gives you a link to download the optimized images in a zip file format. [via Webware]