Convert PNG images to WebP online — fast, free, and high quality.
Convert PNG to WebP online for free on our sharp/libvips engine — better encode quality than a browser, and it handles formats browsers cannot. Files are processed securely and deleted immediately after.
Upload your file using the tool above.
Adjust any settings to your preference.
Click the process button and wait for results.
Download your output using the download button.
Yes. WebP supports a full alpha channel, so transparent backgrounds survive the conversion intact. This is what makes it a genuine replacement for PNG on the web — you get the transparency you need at a fraction of the file size, with no white box appearing behind your logo or icon.
Typically 25–50% smaller than the PNG, and often far more for photographic content. Because WebP offers both lossless and lossy modes, it compresses flat graphics and photographs well, where PNG only ever stores pixels losslessly. Smaller images mean faster page loads, which also helps your Core Web Vitals.
Every current browser supports it — Chrome, Firefox, Safari, Edge and mobile browsers. Support outside the browser is patchier: some older desktop software, print workflows and legacy systems still expect PNG or JPG. Use WebP for anything going on a website, and keep PNG for files you will hand to other applications.
Yes, PNG to WebP Converter is completely free. No signup, no account, and no watermark on outputs. A Pro tier is available for 100 AI ops/day and larger file sizes.
PNG to WebP Converter uploads your file over an encrypted connection to our own processing server, converts it, and returns the result. The file is deleted immediately after processing and is never used for anything else. It is not sent to any third party, and we keep no copies.
Drop a PNG to convert to WebP
Fast, high-quality PNG → WebP conversion
Drop your image into the stage to begin.
What it does: Converts PNG images to WebP on our sharp/libvips engine — better encode quality than a browser, and it handles formats browsers can't (like HEIC and SVG).
Quality & privacy: Converted over an encrypted connection and deleted immediately. No account, no watermarks.