Convert PNG to WEBP
Convert one or multiple PNG images to WEBP directly in your browser. Files are processed locally without being uploaded to a server.
Drag and drop PNG images here, or choose files
Supported source formats: PNG
Conversion Settings
Lower values may reduce file size, but can also reduce image quality.
Download converted files separately through your browser.
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About this PNG to WEBP page
WebP is a next-generation image format developed by Google to be the modern replacement for both JPG and PNG. Released in 2010 and standardized by the Web Hypertext Application Technology Working Group (WHATWG), WebP provides superior compression efficiency: it typically compresses 25–35% smaller than PNG while maintaining the same visual quality, and 25–35% smaller than JPG for equivalent quality. This makes WebP the ideal choice for web-first optimization.
Google's own data shows that switching from PNG to WebP can reduce image file sizes by an average of 26%. This matters significantly at scale. A website with 1000 images saves 260+ MB in total file size by converting to WebP. For users on mobile connections, every kilobyte counts. Smaller files mean faster page loads, lower bandwidth usage, and better user experience—especially in emerging markets where bandwidth is limited or expensive.
Core Web Vitals and SEO are directly impacted by image file sizes. Google's Largest Contentful Paint (LCP) metric measures when the largest visible page element becomes visible. Faster LCP improves your SEO ranking. Converting PNG images to WebP speeds up LCP by reducing the bytes that must be downloaded. This is one of the most direct and impactful ways to improve Core Web Vitals without restructuring your site.
WebP supports both lossy and lossless compression modes. Lossless WebP preserves image quality exactly (like PNG), but in 25–35% smaller files. Lossy WebP is even more efficient (like JPG), offering variable quality trade-offs. This flexibility means WebP can replace PNG for graphics and JPG for photographs, often outperforming both. You choose the compression mode when converting, depending on your image type and quality requirements.
Browser support for WebP has matured significantly since 2020. Chrome, Edge, and Firefox have broad WebP support. Safari on iOS and macOS added WebP support in Safari 16 (2022). The main exception is older browser versions and Internet Explorer, which still has a small but real user base. Modern best practice is to serve WebP with a JPG or PNG fallback using the `<picture>` element in HTML or the `Accept` header for dynamic serving.
Transparency support in WebP is a major advantage over JPG. WebP's lossless mode preserves alpha channels, so you get the transparency benefits of PNG with WebP's superior file size. This is essential for logos, icons, and graphics. Lossy WebP can also support transparency, though with some quality trade-offs. For any image that currently uses PNG for transparency, WebP is likely a substantial size improvement.
Animated WebP is another feature PNG cannot match. PNG can only store static images (unless you use APNG, which has limited support). WebP supports animation natively with better compression than GIF, making it ideal for small looping videos, social media clips, and interactive graphics. This opens new creative possibilities beyond static images.
CDN and cache optimization benefit from WebP adoption. Content delivery networks and caching layers can serve WebP to capable browsers and fallback formats to older clients. This intelligent delivery, combined with WebP's smaller size, compounds the performance gains. Browser caching also works more effectively when files are smaller.
FAQ
Can I convert multiple PNG files to WEBP at once?
Yes. Batch conversion is especially useful when migrating an existing PNG asset library to WebP — point the tool at every PNG you want to migrate and download the result as a single archive.
Does WEBP support transparency like PNG?
Yes. WebP supports full alpha-channel transparency in both lossless and lossy modes, making it a complete replacement for PNG transparency.
Will PNG to WEBP always reduce file size?
Usually yes. WebP typically compresses 25–35% smaller than PNG. In rare cases (very small or heavily optimized images), the size difference is minimal, but WebP rarely produces larger files.
Do all browsers support WEBP?
Most modern browsers (Chrome, Edge, Firefox, Safari 16+) support WebP. Older browsers and Internet Explorer do not. Best practice is to serve WebP with a JPG or PNG fallback using HTML `<picture>` tags or dynamic serving.
Should I use lossy or lossless WEBP?
Use lossless WebP for graphics, logos, and screenshots (like PNG). Use lossy WebP for photographs and complex images (like JPG). Lossy WebP is much smaller than lossless and is ideal for most web images.
Does WEBP support animation?
Yes. WebP natively supports animated images with better compression than GIF or APNG. This is useful for social media clips, looping graphics, and interactive content.
How much smaller is WEBP than PNG?
On average, 25–35% smaller than PNG for equivalent quality. A 1 MB PNG might become 650–750 KB as WebP. The exact savings depend on image content.
Can I use WEBP for printing?
No. WebP is optimized for web and screen display. For print, use TIFF, PNG, or high-quality PDF. Printing services may not accept WebP.
Is WEBP safe for SEO?
Yes. Google recommends WebP and recognizes it as a Core Web Vitals improvement. Serving WebP with proper fallbacks is SEO-safe and encouraged.
How do I serve WEBP with fallbacks?
In HTML, use the `<picture>` element to serve WebP to capable browsers and PNG/JPG to others. In CSS, use `image-set()`. Or use a CDN that automatically serves WebP based on the Accept header.