Convert your .png files to .webp format online. No software to install.
Free: 2 a day without an account, unlimited with a free account.
Drag and drop your .png file or click to browse.
Select WebP as your output format.
Click Convert and download your .webp file.
WebP produces files roughly 26% smaller than PNG in lossless mode, and dramatically smaller in lossy mode — while supporting the same transparency and quality. For websites, this translates directly to faster page loads, lower bandwidth costs, and better Core Web Vitals scores. Google explicitly recommends WebP as a replacement for PNG in its PageSpeed Insights tool.
PNG (Portable Network Graphics, introduced in 1996) uses DEFLATE (lossless) compression. WebP (Web Picture Format, introduced in 2010) uses VP8 (lossy) / VP8L (lossless) compression. WebP supports animation, unlike PNG. However, converting a static image will not create animation. PNG browser support: Universal. WebP browser support: All modern browsers (Chrome, Firefox, Safari 14+, Edge).
The quality impact depends on the specific settings used during conversion. WebP preserves full quality with lossless compression.
In lossless mode, WebP files are approximately 26% smaller than equivalent PNG files. In lossy mode (quality 80), the reduction is 60-80% for photographic content. A 500 KB PNG icon becomes ~370 KB as lossless WebP or ~100 KB as lossy WebP.
Use lossless WebP for graphics with text, sharp edges, and flat colors (logos, icons, screenshots). Use lossy WebP for photographs and complex images. Serve WebP with PNG fallback using the HTML <picture> element for the rare browsers that do not support WebP.
Free: 2 a day without an account, unlimited with a free account. No watermarks.
Create a free account in 10 seconds and start converting immediately. No credit card required.
This conversion runs in your browser using the Canvas API. Your file is not uploaded.
Convert files from any device: desktop, tablet, or phone. No software to install, works in any modern browser.
SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.
Your converted .webp file maintains the best possible quality. No unnecessary compression or quality loss.
Free: 2 a day without an account, unlimited with a free account.
Usually a few seconds: the conversion happens in your browser, without uploading the file.
PNG to WebP conversion happens entirely in your browser. Your file is not uploaded.
Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.