Pixora guide
Best Image Size for a Website
Learn how dimensions, file format and compression affect page speed and image quality.
Compress an image →There is no single perfect size
The right image dimensions depend on where the image is displayed. A hero image may need more pixels than a small card thumbnail.
Match pixels to display size
Avoid sending a 4000-pixel image to a 400-pixel slot unless users genuinely need the extra resolution. Resize large images to a sensible maximum.
Then compress
After resizing, choose an appropriate format and quality. Smaller images can improve loading performance, especially on mobile connections.