AppHelp guide
Image Compression: WebP vs JPEG vs PNG
Choose WebP, JPEG, or PNG output for web images, screenshots, transparency, and file-size savings.
Quick answer
Use WebP for many web images when browser support is acceptable, JPEG for photos where transparency is not needed, and PNG for sharp UI screenshots or transparent graphics. Resize before compression for the biggest savings.
Use WebP for smaller web assets
WebP often produces smaller files than JPEG or PNG at similar visual quality. It is a good default for site images, documentation screenshots, and preview assets when the target environment supports it.
Use JPEG for photos
JPEG is broadly compatible and works well for photos without transparency. Quality settings matter: very high quality can produce little savings, while low quality can add visible artifacts.
Use PNG for transparency and crisp UI
PNG is lossless and supports transparency, which makes it useful for logos, UI screenshots, icons, and diagrams. It can be larger than WebP or JPEG for photographic content.
Frequently asked questions
Should I use WebP, JPEG, or PNG after compression?
Use WebP for many web images, JPEG for photos without transparency, and PNG for transparent graphics or sharp UI screenshots.
Should I resize images before compressing them?
Yes. Resizing to the dimensions you actually need usually saves more bytes than only lowering quality on an oversized image.