Use the original and a downloaded sample to judge the tradeoff. There is no fixed compression saving that applies to every image.
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.
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.
Choose PNG when preserving text and sharp edges is more important than reducing size. Compare WebP when delivery size matters. The WebP quality slider adjusts encoding quality; it does not enable lossless output.
Inputs must be readable by your browser. PNG, JPEG and WebP are common output choices; AVIF encoding depends on the browser. GIF, BMP and ICO output are not provided by the native encoder used here. Exports over 16,384 pixels per side or 80 million pixels are rejected; device memory can impose lower practical limits. There is no daily conversion quota.
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.
