Category WebP & PNG Guides

Download original WebP-to-PNG benchmark data from 80 generated images and 320 encodings, with file-size, timing, transparency, and pixel-fidelity results.

An alpha channel records how opaque each pixel should be. It is the reason a logo can sit cleanly on a dark page, a soft shadow can fade into its surroundings, and an anti-aliased edge can avoid the white fringe…

The practical goal of image optimization is not “the smallest file” or “the highest slider value.” It is the smallest delivery file that remains visually and functionally acceptable for a defined use: the right dimensions, enough detail, correct transparency and…

A batch can fit comfortably on disk and still overwhelm a browser tab. The reason is simple: WebP and PNG files are compressed containers, while image processing usually needs decoded pixels. For a common eight-bit RGBA working surface, the first…

Most “bad export” problems are not random. They come from one of five mismatches: the wrong format, the wrong pixel dimensions, an unexpected export boundary, a color-profile change, or an export command that does not expose the option you expected.…

“Does this browser support WebP?” sounds like a yes-or-no question. For a website that only displays a static image, that may be close enough. For an image converter, editor or animation extractor, it is incomplete. Display support, JavaScript decoding, canvas…

Client-side image processing moves work that might traditionally run on an application server into the visitor’s browser. That can remove a major data-transfer step: the selected image does not need to be posted to a remote conversion endpoint. It is…

PNG, WebP and JPEG solve different jobs. PNG is a dependable lossless editing and compatibility format. WebP is a flexible delivery format that can be lossy or lossless and can include transparency or animation. JPEG remains a practical photographic still-image…

Image-heavy pages and browser-based media tools have two different performance stories. The first is what a visitor experiences while the page loads and responds. The second is how long an image operation—such as decoding WebP or exporting PNG—takes after the…

Short answer: when you select a WebP file in our converter, the image bytes used for conversion are processed in your browser rather than being sent to a remote conversion endpoint. That does not mean the website makes no network…