Image optimization is useful for any web developers to improve page loading time of any website.Useful image editing tools exist that allow images to be edited to reduce their file size while retaining image uses image optimization techniques to image format to remove unnecessary bytes from image files & reduce image file size.

Yahoo Online image optimizer free tool is a web based service from yahoo developer network for optimizing images. When you go to the website, there are main three tabs mainly home, uploader and URL. If you want to upload any image files from your computer to online, go to second uploader tab and upload image from your computer. If you have any image stored online or want to optimize image from your website, go to URL tab and enter URL of image there.You can add as many URL as you want & it will optimize images online.

After uploading image from your computer or from URL, you will see the smushed images option at the bottom of that website.I have smushed this page’s image for example at the website and at the result page, it saws percentage of image smushed. At the bottom, you can see download smushed images, clicking on the button, image will be downloaded in your computer.

YSlow Features:

  • Free online image optimizer tool.
  • Supports image formats like JPGs, GIFs, animated GIFs and PNG.
  • Optimize image without altering visual altering image quality.
  • Helpful for website image optimization to decrease page loading speed.

You can see YSlow @


  1. is the best place to optimize picture. I don’t save picture in my server. I save in picasa then add link in my site.

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