Optimize an Image for a Website
Resize and compress website images to reduce unnecessary file weight while preserving useful visual quality.
Website image optimization is a combination of dimensions, format and encoding quality. There is no single correct KB limit for every site, so optimize against the actual display size and page requirements.
Recommended workflow
- Step 1
Match the display dimensions
Avoid shipping a huge original when the image is displayed at a much smaller size.
- Step 2
Choose a suitable format
Use JPG for many photographs and WebP when the destination supports it.
- Step 3
Compress the result
Use a quality setting that preserves the visible detail users actually need.
Frequently asked questions
Should every website image be compressed to the same KB size?
No. A hero image, thumbnail and small icon have very different needs. Optimize each image for its actual display size and visual importance.
Which format is best for website photos?
JPG is often efficient for photographs, while WebP can be a strong modern option where supported. Graphics with transparency may need PNG or another suitable format.
Tools for this workflow
Related use cases
Reduce image file size before attaching photos to email while keeping a practical balance between quality and file size.
Resize and compress a photo for an online form when the website requires a specific image size, dimensions or upload limit.