Choose a PNG
Select an image with dimensions your browser can process safely.
Private browser converter
Free PNG to WebP Converter
Make a smaller web-oriented WebP copy of a PNG without uploading it.
This conversion runs entirely in your browser. The image is not uploaded.This conversion runs entirely in your browser. The image is not uploaded.
Your result will appear here.This conversion runs entirely in your browser. The image is not uploaded.
01
What this tool is designed for
This converter is aimed at web delivery, not archival replacement. It retains transparency but uses a high-quality lossy WebP export, so very sharp interface edges or text may change slightly. Compare the output before deployment.
02
A simple, practical workflow
Create WebP
The browser preserves the alpha channel and encodes at 92% quality.
Compare visually
Inspect text, line art, gradients, and transparency at actual size.
03
Useful ways to apply it
Web publishing
Reduce many photographic PNG assets for page delivery.
Transparent previews
Create smaller alpha-enabled copies for compatible tools.
CMS optimization
Prepare WebP before upload when the CMS does not convert automatically.
Before you publish
- Keep PNG for archival or exact pixel work.
- Line art may be better left as PNG.
- Measure real size savings instead of assuming them.
04
Frequently asked questions
Does WebP keep transparency?+
Yes. The browser WebP encoder supports alpha transparency.
Is the output lossless?+
No. This tool uses a high-quality lossy WebP setting.
Where is processing done?+
Entirely in the current browser.