PNG to WebP Converter

Yes. WebP supports an alpha channel, just like PNG. When you convert a PNG with transparent areas, those transparent areas are preserved in the WebP output. This makes WebP a strong alternative to PNG for web graphics such as logos, icons, and illustrated elements that require transparent backgrounds.

For images with transparency, WebP typically produces smaller files than PNG with comparable visual quality. For simple, flat colour graphics (logos, icons), the size difference is often modest. For photographic PNG images, the size reduction can be more significant. Exact results vary by image content and quality setting.

This tool uses lossy WebP encoding via the browser display screen API. This achieves good file size reductions but may introduce very subtle compression artefacts compared to the original lossless PNG, particularly around fine edges at low quality settings. For pixel perfect graphics or screenshots intended for archival, the original PNG may be preferred.

PNG files with transparency are often used for logos, icons, and UI elements. Converting them to WebP can reduce their size, speeding up page loads. Since WebP supports transparency, you lose nothing functionally. Modern browsers support WebP natively, making this a straightforward optimisation for web projects.

Yes. The tool works for any PNG file, whether or not it has transparency. For solid background PNGs, you might also consider the JPG to WebP Converter if the source is a photograph, as JPEG is typically the better starting format for photos.

Yes. PNG sprite sheets and icon sheets are just PNG files. They convert to WebP while preserving all transparent regions. Verify that the output looks correct before deploying to production.

Chrome, Firefox, Edge, Opera, and Safari 14+ all support WebP with alpha transparency. Internet Explorer does not support WebP at all. For IE compatibility, keep a PNG fallback using the HTML <picture> element.

Yes. Drag and drop several PNG files at once. Each file is processed and downloadable individually.

Files up to 20MB are accepted. Standard web PNG images are almost always below this limit.

Keep PNG if you need lossless image data for archival, if you're working in a design tool that requires uncompressed imports, or if your users may be on very old browsers that lack WebP support. For public facing web pages where browser compatibility is not a concern, WebP is generally the better choice.