PNG to WEBP Converter
Convert PNG images to WebP for significantly smaller file sizes while keeping transparency. Runs entirely in your browser — nothing is uploaded. Adjust the quality slider and convert multiple files at once.
How it works
- Drop one or more PNG files into the box above, or click to browse your device.
- Adjust the quality slider if you want a smaller file size, then click "Convert to WEBP".
- Download the converted WEBP files individually, or as a ZIP if you selected more than one.
About this conversion
WebP typically produces much smaller files than PNG for the same image, which is why it's become the default choice for web images that need transparency. Unlike JPG, WebP's lossy mode still supports an alpha channel, so transparent areas in your PNG are preserved rather than flattened.
This tool encodes WebP using your browser's built-in canvas support. Nearly all current versions of Chrome, Edge, Firefox, and Safari support it — if yours doesn't, the tool will tell you rather than fail silently.
Frequently asked questions
Will my PNG's transparency survive the conversion?
Yes. WebP's lossy encoding still supports an alpha channel, so transparent areas are preserved, unlike converting to JPG.
What quality setting should I use?
80% is a solid default for web use. Increase it if you notice visible artifacts around fine detail, or lower it further to shrink file size for thumbnails.
Is there a file size or file count limit?
Each file must be under 25MB, and you can convert up to 40 files in one batch, since processing happens in your browser's memory rather than on a server.