Quick comparison
- WebP: supports lossy and lossless compression and transparency; often a good web delivery option.
- JPEG: widely supported and practical for photographs, but does not support transparency.
- PNG: useful for sharp edges, screenshots, and transparency; often larger for photographic images.
Choose based on the image
For a photo or thumbnail, compare WebP and JPEG at a visually acceptable quality. For a logo with transparency or a screenshot containing small text, PNG may preserve the desired appearance better. Always test the actual result rather than assuming a format is always smaller.
Use the image to WebP converter to compare output size, or the image compressor to try different quality settings.
Will converting formats improve SEO?
Changing a format by itself does not guarantee higher rankings. Smaller, appropriately sized images can help page performance, but image relevance, accessibility, responsive sizing, and the overall page experience matter too.
Frequently asked questions
Is WebP always smaller than JPEG?
No. Results depend on the source image, encoder, and quality settings.
Which format supports transparency?
PNG and WebP support transparency; standard JPEG does not.