Learning center
Practical image guides
Use these guides to decide what to do before opening a tool: choose a suitable format, shrink a file without wasting visible detail, and select dimensions that match the final destination.
Workflow overview
Image optimization guide
Follow a complete workflow from original image to resized, compressed, upload-ready output.
Detailed guide
Choose an image format
Compare JPG, PNG, WebP, and AVIF for photos, transparency, screenshots, compatibility, and website performance.
Detailed guide
Reduce image file size
A practical workflow for shrinking upload images with resizing, cropping, compression, target sizes, and visual checks.
Detailed guide
Image dimensions for the web
Plan image width, height, aspect ratio, and safe crops for website content, thumbnails, icons, and sharing previews.
Use the tools after making a plan
Check an image first, crop for composition, resize for its actual destination, then compress or convert the finished output. Each step is available as a browser-based tool and your image does not need a backend upload to be processed.