How to convert PNG to WebP
Many websites load product images, banners or photos saved as PNG that weigh far more than necessary. WebP keeps transparency just like PNG, but with files that are usually much lighter.
This converter turns your PNGs into WebP so your site loads faster without giving up transparent backgrounds.
Step by step
- Click Select file and choose the PNG (up to 50 MB).
- Check that Convert to shows WEBP.
- Click Convert image to WEBP.
- Download the WebP and compare its weight with the PNG.
Which PNGs benefit most
The biggest savings come from photographs and colour-rich product shots, which are very heavy as PNG. For small icons or flat graphics with few colours, PNG is already efficient and the difference may be minimal.
The conversion uses quality 88, which is high-quality lossy compression. Screenshots with small text or pixel art may show slight softening at the edges; if you notice it, keep the PNG for those images.
Transparency, animation and metadata
The alpha channel is preserved, so logos and cut-outs still look right on any background. If the PNG is animated (APNG), only the first image is converted.
Metadata is removed and images up to 40 megapixels are accepted.
Before you replace your images
Compare the PNG and the WebP at full size, especially images with text or thin lines. If the WebP is smaller and looks the same, swap it in; if not, keep the PNG for that image. For a whole site, the Workspace lets you add every image at once and download them in a single ZIP.
Frequently asked questions
- Is the transparent background kept?
- Yes. WebP supports transparency and it is preserved.
- Is the WebP always smaller?
- Almost always for photos. For very simple icons or graphics the difference can be small, so check the final size.
- Is this a lossless conversion?
- No. It uses lossy compression at quality 88, tuned so the difference is not visible.
- Will my CMS accept WebP?
- Most current content management systems and browsers do; check yours before replacing every image.