PNG to WebP
Convert PNG images to WebP for a faster website. Free, with no upload.
Drop images to convert them to WebP
Add one or as many as you like. They're converted on your device, so nothing is uploaded.
PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, and GIF. As many as you like, or a whole folder.
Convert to
Smaller than JPG and PNG, for websites. Keeps transparency.
How to convert PNG to WebP
Add your PNGs and each one is saved as a WebP, which is usually much smaller and keeps transparency. Smaller images make a page load faster. Everything is converted in your browser, so nothing is uploaded.
Step 1
Choose your PNGsPick one or many, or drop them into the converter above.Step 2
Keep WebPWebP is selected; choose another format if you need one.Step 3
Download the WebPSave each WebP, or all of them in a ZIP.
What to expect
- Supported inputs
- PNG images, and any other picture: JPG, HEIC, AVIF, SVG, BMP, or GIF.
- What happens
- Each PNG is saved as a WebP at 85% quality and its full size, with transparency kept. Raise the quality for sharper text, or lower it for a smaller file.
- Limits
- Very large images can be too much for a phone's browser. Safari, and every browser on iPhone and iPad, loads a WebP encoder the first time, which takes a moment.
Private by design
Your images stay on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark
Questions
For photos, often five to ten times smaller. For screenshots and flat graphics, less, but usually still smaller.
Yes. See-through parts of the PNG stay see-through.
Yes. Chrome, Edge, Firefox, and Safari all show WebP images.