Optimising your images

How to Prepare Your Images for Your Website

Optimising your images before uploading them to your website is essential for fast load times, improved SEO, and a better user experience. Here’s how to get it right:

Keep file sizes small

Aim for images under 300KB, never bigger than 600KB. Large files slow down your site and can hurt your SEO.

Resize appropriately

For most uses, 1400px wide is perfect. Only use larger dimensions for full-screen hero images. Avoid uploading huge files and relying on your website to scale them down. 

Rename your files

Use descriptive, keyword-rich filenames instead of generic ones. For example:

  • electrician-belconnen-001.jpg
  • home-renovation-chifley-canberra.webP

This helps with image SEO and makes it easier to manage your media library.

Use the right format

WebP format is ideal as the same quality image can be maintained at a much lower size. WebP images can typically be reduced to 70% quality and still remain crisp and clear to the human eye.

Alternatively use JPG for images.

Compress your images

Use tools listed below to reduce file size without compromising image quality.

Summary

Size
0 KB
Width
0 px

Format

webP or JPG

Rename

service-canberra-001.webp

Image Optimiser Tools

Squoosh

Squoosh is a free, browser-based image optimisation tool created by Google. It lets you quickly reduce the file size of your images without noticeably affecting quality. You can resize, compress, and even change the format (like converting to WebP) — all right in your browser. Nothing is uploaded — everything happens locally on your device, so it’s private and fast.

Squash (Mac Users Only)

Squash is a Mac app designed to make image compression fast and simple. You can drag in multiple images and it will automatically reduce their file size while keeping them looking great. It supports a range of formats and is perfect for batch processing before uploading to your website. Squash is a paid app (at the time of writing $87/year) developed by Realmac Software.

Quick Tools to Resize and Compress Images Easily

ToolBest ForTypeFree/PaidLink
SquooshQuick, private, browser-based useWebFreesquoosh.app
TinyPNGEasy batch compressionWebFree / Paidtinypng.com
SquashMac users who want batch resizingDesktopPaid / Setapprealmacsoftware.com/squash
ImageOptimDevelopers, metadata strippingDesktop (Mac)Freeimageoptim.com/mac
XnConvertCross-platform batch conversionsDesktopFreexnview.com/xnconvert

Compressing PDFs

This tool by Adobe can be used for compressing PDFs.