Yesterday we talked about how image optimization works and promised to tell you about some great, free tools.

So here is our hand-picked selection f the best free image optimizers you can use. Start creating web-friendly images for your site with just a few clicks!


Kraken’s web interface lets you optimize your images with blazing speed using powerful API and online web interface. You can optimize images in bulk and download them as .zip archives. The free web interface has a file size limit of 1MB.


This is a WordPress plugin that lets you reduce image file sizes, improve performance and boost your SEO using the free WPMU DEV WordPress Smush API. It will auto-optimize all uploaded images on your WordPress Media Library. The great thing about this plugin is that it does not only compress the images but also lets you resize them at a certain width and height.



This is another free online service for image optimization which you can use to resize, compress and optimize your image files. This is a very easy-to-use tool. You can optimize your images with just a few clicks and make them more suitable for web pages, email attachments, or even storage on your computer. This web service also has a software version which you can download on your computer and resize and compress your images with a single click!

free-image-optimizer is a powerful online image optimization tool for reducing the size of your images and photos. This tool drastically reduces your images size whilst maintaining their high quality with almost no difference before and after compression. it offers two types of compression, lossless and lossy, supports 4 file formats (JPEG – PNG – GIF – SVG) and has a high compression option for larger images.



This tool helps your images load faster, by making them smaller in size. It removes bloated metadata and saves disk space & bandwidth by compressing images without losing quality. The great thing about this tool is that it removes invisible junk, like private EXIF meta­data from digital cameras, embedded thumbnails, comments, and unnecessary color profiles.

It is available both as a Mac app and web service. Another useful feature is that you can use it to automate the generation of multiple variants of images for optimal fit on phones, tablets, and large screen devices. This is perfect for responsive or mobile websites.


With the help of these great tools, it’s easy to have fabulous looking images online.

~ Ruxundra