PNG to WebP converter
Convert PNG images to WebP in seconds, one at a time or in bulk. Your files are converted on your own device and never uploaded.
Private: your images are processed on your device and never uploaded.
How to convert PNG to WebP
- Add your PNG files. Drag them in, click to choose or paste. Add as many as you like.
- Adjust if needed. The default quality suits most uses. Optionally resize large images.
- Download. Save each WebP on its own or click “Download all” for a ZIP.
Why convert PNG to WebP?
WebP keeps transparency like PNG but is usually far smaller, which makes websites load faster and helps with Google’s Core Web Vitals.
PNG is a lossless format with transparency support, ideal for logos, screenshots and graphics with sharp edges. WebP is Google’s modern web format. It is usually 25–35% smaller than JPG at the same visual quality and supports transparency.
Frequently asked questions
Does WebP keep transparency?
Yes. Transparent backgrounds from your PNG are preserved in the WebP file.
Are my images uploaded to a server?
No. Every image is processed inside your browser using WebAssembly. Nothing is sent over the internet, which also makes it fast and safe for private photos.
Is it really free? Are there limits?
Yes. It’s free with no sign-up, no watermark and no daily limit. Your own device does the work, so there is no server cost per image.
Is image quality affected?
The default quality setting produces results that look the same as the original. Move the slider to 95–100 for maximum quality.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Mac, Windows and Chromebook. You can also add it to your home screen and use it offline.