How to Optimize Images for Website Speed

Website speed is critical for user experience and SEO. Images usually make up the bulk of a webpage's weight. Here is how to optimize them for maximum speed.

1. Compress Everything

Never upload a raw image straight from your camera or phone. Always run it through a tool like our Image Compressor. Aim for file sizes under 200KB for large hero images, and under 50KB for smaller graphics.

2. Serve Next-Gen Formats

Google highly recommends serving images in next-generation formats like WebP or AVIF. They provide superior compression to JPG and PNG. Use our WebP Compressor to prepare your files.

3. Use Responsive Images (srcset)

Don't send a 2000px wide image to a user on a mobile phone. Use HTML srcset attributes to serve different image sizes based on the user's screen width.

4. Implement Lazy Loading

Add the loading="lazy" attribute to your <img> tags. This tells the browser not to load the image until the user scrolls down near it, significantly speeding up the initial page load.