How to convert PNG to WebP online
Add your PNG files
Drop PNG files into the box, choose them from your device, or paste them from your clipboard. You can add hundreds at once.
Convert PNG to WebP privately on your device
Each PNG is re-encoded as WebP on your device at the smallest size that still looks the same, with transparency kept.
Download your WebP files
Save each file on its own, or take them all in one ZIP. Your files stay private: they never leave your device, so there is no upload to wait for.
Why convert PNG to WebP?
PNG stores every pixel exactly, which keeps screenshots and logos crisp but makes files large. WebP can store the same image in a fraction of the space, and it keeps transparency.
Smaller images make web pages load faster, which helps both visitors and search rankings. Every current browser opens WebP. The exceptions are older software and some email programs.
| Compared on | PNG | WebP |
|---|---|---|
| Type | Lossless | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Opens on | Everything | All current browsers. Some older apps can't open it |
| Best for | Screenshots, logos and graphics with transparency | Website images that load fast |
Questions about converting PNG to WebP
Is the conversion lossless?
WebP can be either. Sanil.app picks the smallest file that still looks the same, which is slightly lossy for photos.
Is transparency kept?
Yes. WebP supports transparent backgrounds, so logos and cut-outs keep theirs.
How much smaller will it be?
It depends on the image. Photos saved as PNG often shrink by more than half, while flat graphics shrink by less.
Will converting PNG to WebP make my website faster?
Usually, yes. Smaller images download faster, and images are often the largest part of a page. Serve the WebP to browsers and keep the PNG as your source file.
Are my PNG files private?
Yes. Sanil.app converts your PNG files on your device, so they are never uploaded and never reach a server. They stay yours.