How to Optimise Images for Your Website (And Why You Should Actually Care)

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Image optimisation might sound technical, but once you’ve done it a couple of times, it becomes second nature. And the payoff? A website that’s faster, more user-friendly, and loved by search engines. So go on, give it a go. Your website (and your visitors) will thank you!

Final Thoughts: It’s Not That Hard, Honestly!

If you’re feeling fancy, try using WebP. It’s a modern image format that gives you smaller file sizes and better quality. It’s like the best of both worlds. Not all browsers support it yet, but it’s worth checking out if you’re looking to squeeze every bit of performance out of your site.

Now, this is where the magic happens. Once you’ve got your image the right size, you’ll want to compress it. This reduces the file size even more, without sacrificing quality (at least not too much – there’s a balance here).

Here’s where I come in with the good stuff. Check out these brilliant (and free!) tools to help you compress your images:

  • 11zon – This one’s fab because you can manually select the final quality you want. You have complete control over how much you compress the image, which is great if you want to fine-tune it.

  • xConvert – I know, this one's for video, but just in case you're also adding some snazzy videos to your website, this is a great tool to compress them without sacrificing too much quality.

Step 3: Compress, Compress, Compress

Before you even think about uploading an image, make sure it’s the right size. If your image is 4000 pixels wide but you’re only displaying it at 500 pixels, you’re wasting precious space. Resize it to fit the space it’s going to live in – no one needs a massive image crammed into a tiny box.

Step 2: Resize Your Images

Not all image files are created equal, folks. Here’s a quick rundown of the main types you’ll encounter:

  • JPEG (or JPG): Best for photos. They’re small in size but still look pretty sharp.
  • PNG: Use these for images that need transparency (like logos). They’re a bit larger, but sometimes you just need that background to be invisible.
  • GIF: Only for simple animations – don’t use them for normal images unless you want your site to look like it’s stuck in the 90s.

Step 1: Choose the Right File Type

Before we dive into the how, let’s talk about the why – because if you’re anything like me, you want to know it’s worth the effort.

  • Faster Load Times: The quicker your website loads, the happier your visitors will be. If your images are massive, they’ll slow down your site, and people will bounce quicker than you can say “buffering”.
  • SEO Boost: Google loves a fast website. If your site is speedy, you’ll rank higher in search results. Optimised images = happier Google = more people finding your site. Simples.
  • Better User Experience: A fast website with crisp, clear images is just a better experience for your visitors. And you want them to stay and explore, right?

Why Should You Optimise Your Images?

Let’s be honest. When you’re building a website, image optimisation is probably at the bottom of your to-do list. You’re thinking about the design, the copy, the colours (because, British spelling, obviously), and making sure everything looks amazing. But here’s the thing – if your website’s as slow as a Sunday driver, no one’s going to stick around to admire it.

And that’s where image optimisation comes in. It’s a fancy way of saying, "make your pictures smaller so your site doesn’t take ages to load." No one wants to wait 10 seconds for a page to appear – this isn’t the 90s, and we don’t have time for that dial-up nonsense.

But don’t worry, optimising images isn’t as complicated as it sounds. In fact, I’m going to walk you through it and give you some handy tools to make the job super easy. Ready? Let’s get stuck in!

Step 4: Use Lazy Loading (It’s Not What You Think!)

No, this isn’t about being lazy. It’s about making sure your images only load when the user needs to see them. This is especially important for pages with a lot of images.
Lazy loading means images further down the page don’t load until the user scrolls down. It keeps things moving quickly at the top of the page and doesn’t overwhelm your site with too many requests all at once.

Most modern website platforms, like WordPress and Shopify, have lazy loading built-in, so make sure it’s switched on.

Step 5: Use WebP Format (The Future of Images)

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