PNG to WebP Converter: Free Online Image Format Transformer
Convert your PNG images to WebP format whilst preserving transparency. All processing happens in your browser - no files are uploaded to any server.
Drag and drop your PNG files here, or click to select
• Support for multiple files
• Client-side processing - files never leave your browser
• Transparency preservation
• Adjustable quality settings
• Instant preview and download
Benefits of Converting PNG to WebP
Smaller File Size
WebP images are typically 25-35% smaller than PNG files whilst maintaining the same visual quality and transparency support.
Faster Loading
Reduced file sizes mean faster website loading times, improving user experience and search engine rankings.
Modern Format
WebP is a modern image format supported by all major browsers, optimised for web performance and mobile devices.
How to Convert PNG to WebP
Select Your PNG File
Click the "Select Files" button or drag and drop your PNG image into the converter area.
Adjust Quality Settings
Use the quality slider to balance file size and image quality. Higher values preserve more detail but create larger files.
Convert and Download
Click "Convert to WebP" to transform your image, then download the optimised WebP file instantly.
PNG vs WebP: Technical Comparison
| Feature | PNG | WebP |
|---|---|---|
| File Size | Larger (lossless compression) | 25-35% smaller |
| Transparency | Full alpha channel support | Full alpha channel support |
| Browser Support | Universal support | 97%+ modern browsers |
| Compression | Lossless only | Both lossless and lossy |
Frequently Asked Questions
Is PNG to WebP conversion lossless?
WebP supports both lossless and lossy compression. Our converter allows you to adjust quality settings to balance file size and image quality according to your needs.
Does WebP preserve PNG transparency?
Yes, WebP fully supports alpha channel transparency, maintaining all transparent areas from your original PNG image during conversion.
Are my files uploaded to your servers?
No, all PNG to WebP conversion happens entirely in your browser. Your files never leave your device, ensuring complete privacy and security.
What browsers support WebP images?
WebP is supported by over 97% of browsers including Chrome, Firefox, Safari, and Edge. It's become the standard for modern web images.
How much smaller are WebP files compared to PNG?
WebP files are typically 25-35% smaller than equivalent PNG images whilst maintaining the same visual quality and transparency support.
