Image & Design
Resize and compress images, and work out exact proportions.
- Aspect Ratio Calculator
Simplify a ratio from pixels or find the missing width or height.
- Image Compressor
Shrink image file size with a quality slider and a before/after comparison.
- Image Resizer
Change an image's width and height and download it as JPEG, PNG or WebP.
- Images to ZIP
Add as many images as you like, pick the ones you want and download them in one ZIP folder.
Related guides
How to compress images for a website without visible quality loss
A practical order of operations: pick the right format, resize to the size you display, then lower quality until you can see a difference and step back.
Aspect ratios explained: how to calculate and resize without distortion
How to reduce any width and height to a ratio, find a missing dimension, and decide between scaling, cropping and padding.