PNG to WebP
Need to convert PNG (lossless) to WebP (lossy/lossless)? Do it right here, in your browser. Your file never gets uploaded to any server.
Drop files here
or browse
Supported: PNG
Higher = better quality, larger file
How to convert
Choose one or more PNG files
Adjust quality (for WebP)
Click Convert and download the WebP file
Format comparison
| PNG (lossless) | WebP (lossy/lossless) | |
|---|---|---|
| Format | PNG | WebP |
| Compression | Lossless | Lossy and lossless |
| Transparency | Yes | Yes |
| Max color depth | 8–16 bit | 8 bit |
| Introduced | 1996 | 2010 |
Frequently asked questions
How do I convert PNG to WebP?
Open this page, drop your PNG file(s) into the box, optionally adjust quality, then click Convert and download the resulting WebP file. Everything happens locally in your browser.
Is it really free?
Yes. FormatBox is completely free with no sign-up and no watermark. There is no hidden cost and no file limit.
Are my files uploaded to a server?
No. Your images are processed entirely in your browser using your device's own capabilities. The files never leave your computer or phone.
Will I lose image quality?
It depends on the format. WebP uses lossy or lossless compression depending on the target. You can adjust the quality slider; higher quality means a larger file.
What is PNG?
PNG is a lossless image format that preserves sharp edges and transparency. It is ideal for screenshots, logos, diagrams and graphics with text.
Can I convert multiple files at once?
Yes. You can drop several PNG files at once and they will be converted one by one, each available for download.