PNG files are lossless but often far too large for web use. WebP delivers 25-35% smaller files than PNG while supporting transparency — making it the ideal format for website images, e-commerce product shots, and any graphics that need to load fast without sacrificing quality.
| File type | PNG | WebP | Note |
|---|---|---|---|
| Website logo with transparency | 480 KB | 145 KB | 70% smaller |
| E-commerce product image | 1.2 MB | 380 KB | 68% smaller |
| UI screenshot (1920×1080) | 2.8 MB | 850 KB | 70% smaller |
| Icon set (transparent BG) | 95 KB | 32 KB | 66% smaller |
Replace PNG images with WebP across your site to reduce page weight by 25-35%. Faster pages improve SEO rankings and user experience.
Product images with transparent backgrounds are often PNG. Convert to WebP to keep transparency while dramatically reducing file size for faster product page loads.
Google's Largest Contentful Paint (LCP) metric directly measures image load speed. Switching from PNG to WebP can significantly improve your LCP score.
If you serve thousands of images monthly, the 25-35% file size reduction from PNG to WebP translates directly to lower CDN bills and faster global delivery.
Download and open Picmal on your Mac.
Drag and drop your PNG files or entire folders into Picmal.
Choose WebP as the output format and click Convert.
Portable Network Graphics
Lossless image format standardized as ISO/IEC 15948 and maintained as a W3C Recommendation. PNG supports full alpha transparency and is the preferred format for graphics, screenshots, and images requiring sharp edges.
Best for
Screenshots, logos, graphics with transparency
WebP Image Format
Developed by Google and based on the VP8 video codec, WebP delivers 25–35% smaller files than JPEG at equivalent SSIM quality according to Google's comparative study. Supported by all major browsers since 2020.
Best for
Web images, blogs, and online stores
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Open Picmal, drag your PNG files or folders into the window, select WebP as the output format, adjust quality settings, and click Convert. Picmal processes everything locally.
Yes. WebP fully supports alpha channel transparency, just like PNG. Your logos, product images, and graphics with transparent backgrounds will look identical in WebP format — at a fraction of the file size.
For typical web graphics, WebP files are 25-35% smaller than PNG. A 500KB PNG logo might become 150KB in WebP. For photographs with transparency, savings can be even greater — up to 50%.
Picmal supports both lossy and lossless WebP compression. In lossless mode, the conversion is mathematically identical to PNG — zero quality loss. In lossy mode at 90%+ quality, differences are invisible to the human eye.
As of 2025, WebP is supported by 97%+ of browsers including Chrome, Firefox, Safari, and Edge. The only notable exception is very old browser versions. For maximum compatibility, keep PNG originals as fallback.
Yes. Drag your entire images directory into Picmal and convert all PNG files to WebP at once. This is the fastest way to optimize your website's images and improve page load speed.
Picmal is a one-time purchase of $39 — no subscription. Download to explore the interface, and get a 14-day money-back guarantee with your purchase.
If you don't need to change formats, Picmal can also compress your files to reduce size:
One-time purchase · No subscription · 14-day money-back guarantee