Optimising web images

In this post, John Espirian shows Mac users how to quickly and easily reduce the file size of their website images. This tip is especially useful if you’re running a blog.


ImageOptim reduces image sizes without losing image quality

If you run your own website and/or blog, you should optimise it so that your pages load as quickly as possible. There are lots of ways to do this, but one of the most effective methods is to reduce the file sizes of your images.

Here’s a free app for Mac users that does just that. It’s called ImageOptim: it does only one job but does it really well. Optimising your images with ImageOptim will make the file sizes smaller but will not reduce the quality of the images.

Check out my two-minute video on getting started:

Savings made when optimising images

Here’s an example of some file size savings made on some test PNGs:

ImageOptim savings

ImageOptim often reduces file sizes by 10–20%

It might not sound like much, but optimising the images across a whole website could have a significant positive effect on the time your pages take to load. And it could help Google and other search engines look more favourably on your content. Lean and mean is the way to go!

So, give ImageOptim a try and let me know what you think. Catch up with me on Twitter or leave a comment below. I’d love to hear from you.

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Thanks for reading, John Espirian