CompressPowerImage Converter
PNG to WebP Converter
Convert PNG files to WebP format with browser-based processing for privacy and fast results. Supports files up to 1GB.
Drag & drop files here
or Browse Files
Frequently Asked Questions
- Is transparency kept?
Yes. WebP has a full alpha channel, so it is a drop-in replacement for transparent PNGs.
- How much smaller is it?
For screenshots and UI graphics, usually 30 to 60 percent below PNG at quality 90.
- Can I get a lossless WebP?
Set quality to 100. Lossless WebP is still around 25 percent smaller than the same PNG.
- Do my files get uploaded anywhere?
No. This tool runs inside your browser tab. The file is read from disk locally and the result is written back locally, so there is nothing on our side to store or delete.
- Is there a size limit?
Images are capped at 100 megapixels, since the browser has to hold the full bitmap in memory. On file count: 8 operations per day without an account, 20 when signed in.