Compare a WebP export with the PNG original before choosing the delivery format.
PNG is useful for text, screenshots, sharp edges and transparency. PNG losslessly encodes only the pixel buffer Canvas renders. Browser decoding, color conversion or bit-depth handling can change source pixels; profiles and metadata may differ.
WebP can be useful for web delivery and supports transparency. The WebP format can store animation, but this tool exports one still frame from animated inputs; animation is not preserved. This tool passes a quality value to the browser encoder. A quality setting of 100 does not guarantee lossless WebP output; download and inspect the result.
Start with a moderate quality value and compare the downloaded file with the original. Results depend on the image and browser encoder. The on-page thumbnail shows the source image, not a before/after comparison. PNG quality is not controlled by the quality slider.
Export redraws the pixels, so original EXIF and other source metadata are not copied. Animated inputs are exported as a still image. Animation is not preserved. SVG export wraps a bitmap and does not trace vector paths.
Compare JPEG, PNG, WebP and AVIF by content type, transparency, compatibility and editing needs.
Use the original and a downloaded sample to judge the tradeoff. There is no fixed compression saving that applies to every image.
Use the original and a downloaded sample to judge the tradeoff. There is no fixed compression saving that applies to every image.
Use the original and a downloaded sample to judge the tradeoff. There is no fixed compression saving that applies to every image.
Practical guides for local conversion, image delivery, accessibility and choosing formats for a website.
Compare a WebP export with the PNG original before choosing the delivery format.
Image optimization supports accessibility and loading performance. Ranking gains cannot be promised.
A WordPress library can use several formats. Keep editing originals and choose delivery files for each use.
