Convert PNG to WebP
Converting PNG graphics and screenshots to WebP can cut file size dramatically while keeping transparency.
- Never uploaded
- Instant, no sign-up
- Works offline
Drop images here
Files stay in your browser — nothing is uploaded.
About this tool
Drop your PNG files below and they are converted to WebP right in your browser — no upload, no waiting on a server, and no file-size caps beyond your device's memory.
How it works
- 1
Add your PNG images.
- 2
Adjust the quality if you like.
- 3
Convert and download the WebP files or a ZIP.
Features
Private by design
Conversion happens on your device with your browser's own image engine.
Batch ready
Convert many files at once and download them together as a ZIP.
Sensible defaults
WebP supports alpha, so transparent PNGs stay transparent.
Good to know
Use a high quality (90%+) for sharp UI screenshots and logos.
Supported formats
Input: PNG (and other common image formats). Output: WebP.
Frequently asked questions
How do I convert PNG to WebP?
Drop your PNG files onto the converter, click Convert, and download the WebP results. It all runs in your browser.
Is converting PNG to WebP lossless?
WebP is lossy, so a small quality change is possible; at 90% or above it is rarely noticeable.
Can I convert many files at once?
Yes. Add as many as your device's memory allows; they are processed in parallel by background workers and can be downloaded as a ZIP.
Are my images uploaded to a server?
No. Files are decoded, processed and re-encoded by your browser using the canvas API and Web Workers. Nothing is sent to any server, and there is no account or storage. Closing the tab discards everything.
Related tools
Need more than one tool?
The full editor combines cropping, adjustments, filters, text, shapes and layers in one place.
Open the editor