Image converter · runs 100% in your browser
PNG to WebP Converter
Convert PNG images to WebP entirely in your browser. PNG is lossless, supports transparency, well-supported everywhere; WebP is modern format with both lossy and lossless modes, smaller than JPG/PNG. The conversion runs locally using the Canvas API — your file is decoded, re-encoded, and offered as a download without ever touching a server.
How to use
- Drop your PNG file onto the dropzone (or click to browse).
- The converter decodes the source image entirely in your browser using the Canvas API.
- If the target format supports it, you can adjust quality before encoding.
- Click Download to save the WebP file to your device.
FAQ
Is the PNG to WebP converter free?
Yes. The full converter catalog is free. There is no upgrade tier, no quota, no watermark, and no signup.
Do my files upload to a server?
No. Conversion runs entirely in your browser. Open the Network tab in DevTools while you convert — you will not see your file leaving the page.
Why convert PNG to WebP?
PNG is lossless, supports transparency, well-supported everywhere. WebP is modern format with both lossy and lossless modes, smaller than JPG/PNG. Converting between them is useful when the destination platform expects WebP or when you want the trade-offs that WebP offers.
What is the maximum file size?
Whatever your browser can hold in memory. On a modern desktop browser, several hundred megabytes is usually fine; on mobile, expect tighter limits.