Learn · Image
How to Compress Images for Faster Websites
Image compression is one of the fastest ways to improve page speed, but the goal is not simply “smallest file wins.” The goal is faster delivery without making the image look broken, muddy, or cheap.
Start with the page, not the image
A product image on an ecommerce collection page does not need the same quality level as a portfolio hero image. Decide where the image will appear and how large it will actually render before you choose how aggressively to compress it.
What usually makes a web image too heavy
- Exporting large images at full camera dimensions when the layout displays them much smaller
- Keeping very high quality settings for routine content images
- Uploading PNG files for photos when JPG or WebP would be lighter
Practical workflow
- Check the target display size on the website first.
- Resize if the current image is far larger than needed.
- Compress the image and review the visual result, not just the file size.
- Prefer the smallest version that still looks intentional on the actual page.
What to watch for
Compression artifacts show up fastest in soft gradients, skin tones, shadows, and text-heavy images. If the image looks obviously degraded at normal viewing size, you pushed the setting too far even if the performance result looks attractive.
Use the tool
Upload your file into Image Compress and compare lighter exports before downloading the version you actually want to ship.
Related reading
If the image is still too large for the layout, continue with How to resize images for Shopify or WooCommerce.