How to optimise images for the web

Do you run a blog or regularly post images on the web? This free tool will show you how to reduce the file sizes of your images without any loss of quality.

ImageOptim icon

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.

How to optimise web images on macOS

ImageOptim 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:

How to optimise web images on Windows

Here’s another free tool that reduces the file sizes of your images: PNGGauntlet.


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 (macOS) or PNGGauntlet (Windows) a try and let me know what you think by leaving a comment below.

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Who wrote this?

John Espirian freelance technical copywriter

John Espirian – the relentlessly helpful technical copywriter

I write B2B web content, blogs, user guides and case studies – all aimed at explaining how your products, services and processes work. I also offer LinkedIn profile critiquing and rewriting.

I work from home in Newport, South Wales and support the (formerly) mighty Liverpool FC 🔴⚽️