How to Compress Images for a Faster Website
Large images are the #1 cause of slow web pages. Learn how to compress and resize images the right way to speed up your site.
Images are usually the heaviest part of a web page, and oversized images are the number one reason sites feel slow. The good news: you can often cut image sizes by 50-80% with no visible quality loss. Here's how.
Why image size hurts performance
Every kilobyte an image adds is a kilobyte your visitors have to download. On mobile connections that means slower loads, higher bounce rates, and worse Core Web Vitals scores — which can hurt your Google ranking.
Step 1: Resize to the size you actually display
A photo that's 4000px wide displayed in a 800px slot is wasting 5× the data. Resize it first with the Image Resizer so the dimensions match how it's shown.
Step 2: Compress the file
Once the dimensions are right, run the image through the Image Compressor. Drag the quality slider until you find the sweet spot — 70-80% is usually visually identical to the original for photos.
Step 3: Use a modern format
WebP files are typically 25-35% smaller than JPG at the same quality. Convert your images with the Image Converter and serve WebP where your audience's browsers support it.
A quick checklist
- Resize to display dimensions → Image Resizer
- Compress to 70-80% quality → Image Compressor
- Convert to WebP → Image Converter
- Embed tiny icons as data URLs → Image to Base64
All of these run privately in your browser and are completely free. Do them once per image and your pages will load noticeably faster.