PNG to WebP Converter
Easify your web — convert to WebP for faster loading.
Free online PNG to WebP converter. Reduce image file sizes by 60–80% with Google's WebP format. Improves website speed and SEO. Transparency preserved. No upload.
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How to Use
Drag and drop your PNG file, click to browse, or paste from clipboard. Supports all PNG types including PNGs with transparency. Max file size 20 MB.
WebP supports both lossy and lossless modes. At 85% quality, WebP typically produces files 25–35% smaller than equivalent JPG and 60–80% smaller than PNG — with the same visual quality.
Click "Convert Now" for instant browser-based conversion. WebP conversion preserves transparency from your PNG, unlike JPG conversion.
Download your WebP image. Use it in your HTML with a <picture> fallback for older browsers, or simply replace PNG references in modern web projects.
What Is WebP and Why Convert to It?
WebP is a modern image format developed by Google, designed specifically for the web. It achieves significantly better compression than both PNG and JPG while maintaining equivalent visual quality. A PNG image that is 500 KB will typically become a WebP at 100–200 KB with no visible quality difference — a 60–80% reduction.
Google's Core Web Vitals and PageSpeed Insights actively recommend WebP. Smaller images load faster, which directly improves your website's performance score, user experience, and search engine ranking. WebP is now supported by over 96% of all browsers worldwide, including Chrome, Firefox, Safari (since iOS 14 / macOS Big Sur), Edge, and Opera.
WebP vs PNG: Which Is Better?
For web use, WebP is almost always better than PNG. WebP supports transparency (just like PNG), can be lossy or lossless, and produces dramatically smaller files. The only reason to stick with PNG is compatibility with very old software or systems that don't support WebP.
For photography, WebP at 85% quality produces files 25–34% smaller than equivalent JPG. For graphics and logos with flat colors, WebP lossless mode produces files 26% smaller than PNG.
Transparency Support
Unlike converting PNG to JPG, converting PNG to WebP fully preserves your image's transparency. If your PNG has a transparent background, the WebP output will too. This makes WebP an ideal format for logos, icons, and UI elements that need transparency.
Browser Support and Fallbacks
WebP is supported by all modern browsers. For maximum compatibility in production, use the HTML <picture> element with a PNG fallback:
<picture>
<source srcset="image.webp" type="image/webp">
<img src="image.png" alt="...">
</picture>
Frequently Asked Questions
According to Google's research and real-world testing, WebP lossless images are 26% smaller than PNG. WebP lossy images are typically 60–80% smaller than equivalent PNG files. For photographic content, WebP is 25–34% smaller than equivalent JPG. The exact savings depend on the specific image — use the Quality vs File Size chart on this page to see the exact savings for your image.
Yes. WebP fully supports alpha channel transparency, just like PNG. When you convert a PNG with a transparent background to WebP, the transparency is preserved. This is one of WebP's key advantages over JPG for web use — you get small file sizes AND transparency support.
WebP is supported by over 96% of all browsers worldwide as of 2025, including Chrome, Firefox, Safari (iOS 14+ and macOS Big Sur+), Edge, Opera, and Samsung Internet. The only exceptions are very old versions of Safari and Internet Explorer 11. For maximum compatibility, use a <picture> element with PNG fallback in production.
Yes, for web use. Google PageSpeed Insights and Core Web Vitals scoring actively penalize serving PNG images where WebP is available. Smaller images improve load time, which improves user experience and SEO ranking. With 96%+ browser support, WebP is now the recommended format for all new web projects.
85% quality is recommended for most web images — visually indistinguishable from the original with excellent compression. For thumbnails and small graphics, 75–80% is fine. For hero images and banners that users will look at closely, use 88–92%. Use the interactive Quality vs File Size chart to find the exact breakpoint where quality starts to visibly degrade for your specific image.
Yes. All modern browsers can open WebP files — just drag one into Chrome or Firefox. On Windows 10/11, the Photos app supports WebP. On macOS Big Sur and later, Preview supports WebP. If you need to open WebP in older software, convert it to PNG or JPG first using our WebP to PNG converter.
Yes. All processing happens in your browser using the Canvas API. Your images are never sent to any server. The conversion works offline once the page is loaded. You can safely convert sensitive images, confidential logos, or private photos.
Yes. Switch to the Batch Mode tab and drop up to 20 PNG files at once. All files are converted with the same settings and you can download all converted WebP files as a single ZIP archive.