Some portals only accept JPG, some sites prefer WebP, and design exports often come as PNG. Wrong picks mean huge files or black backgrounds where transparency should be.
Quick comparison
JPEG works well for photos, is usually smaller, and does not support transparency. Saving again and again reduces quality.
PNG supports transparency and works well for icons, UI screenshots, and text-heavy images. Photos are often larger than JPEG or WebP.
WebP is often smaller at similar quality and can keep transparency. It works in most modern browsers and apps. Very old clients may not open it.
The same picture can change size a lot when you switch formats. Convert one sample first, then batch the rest.
How to choose
If you are unsure who will open the file, use JPEG for photos or PNG when you need transparency. Modern web projects can prefer WebP.
Keep SVG as the source for logos and icons. Use SVG to PNG when you need a bitmap at a specific size.
After converting, use Image Compress if you are still over a size limit. Do not skip resizing large photo PNGs.
Print shops and older devices sometimes only take JPEG. Ask for the required format before you deliver.
Conversion and compression run in your local browser and are not uploaded to our servers. Keep a backup of important originals.