I normally don’t buy applications like HTML Optimizer Pro, but I’ve been very impressed with the reductions it has made to the size of the files in my new theme, making my pages load even faster. In a broadband world you may question the need for products like HTML Optimizer Pro, but if you have heavy pages like me then they can still be worthwhile.
What HMTL Optimizer does is run through your HTML and script code to make it lighter and slimmer, without corrupting the raw code. To use the tool all you have to do is download a copy of your site or theme and run it through the optimiser, which then outputs the optimised files in a new folder so that you still have the original files. It also optimizes JPEG and PNG images, which can cut the image sizes by up to 50%.
The whole process took about 2 seconds to run on my PC and you can see the results above. As you can see the optimiser reduces many big elements by nearly 20%, which is significant. although this won’t necessarily by itself mean you will save 20% on your bandwidth bill or that your pages will load 20% faster, it’s definitely going to help.
The normal version costs $20 and the pro (image support) costs $33. It’s not a lot of money, but their is a free trial that allows you to use the tool for 30 days. It is limited as it will only optimize 50% of the files if you want to scan a whole folder at a time. But if you are really patient and only have a WordPress theme to optimise (20-30 files on average), then you can load each file one at a time to get them optimised to get around this limitation 
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