PNG to WebP

Convert PNG to WebP format. Preserves transparency, reduces file size. 100% private.

100% Private No Account Needed Runs in Your Browser

Drop PNG images here

About PNG to WebP Converter

Convert PNG images to WebP format with transparency preservation. Significantly smaller file sizes for web performance. Quality slider lets you balance size vs quality. All in your browser.

Transparency Preserved

WebP supports alpha transparency. Your PNG images with transparent backgrounds stay transparent after conversion.

Smaller File Sizes

WebP typically produces files 25-35% smaller than PNG. Faster page loads, less bandwidth for your users.

Quality Control

Adjust quality from 10-100%. Find the sweet spot between visual quality and file size for your use case.

Browser-based

Conversion runs locally in your browser using Canvas API. No uploads, instant results, completely private.

📋 Common Use Cases

Website Performance Boost

Convert transparent PNG icons and logos to WebP for much smaller file sizes while keeping perfect transparency and quality.

Faster Page Loading

Replace large PNG graphics on your site with WebP alternatives that load faster, especially on mobile connections.

SEO Optimization

Use WebP images with transparency to improve page speed scores in Google Lighthouse and Core Web Vitals.

Modern Browser Deployment

Serve WebP versions of your PNG assets alongside PNG fallbacks for the broadest browser compatibility.

🪜 How to Use This Tool

Upload PNG image
Select a PNG file from your device — transparent areas are preserved in the conversion.

Set quality level
Adjust the quality slider to balance file size reduction against visual fidelity.

Preview the WebP result
Review the converted image to verify transparency and quality are maintained.

Download WebP file
Save your converted WebP image — processing happens entirely in your browser.

Frequently Asked Questions

Is this image tool really free?▼

Yes. Every image tool is completely free. No signup, no account, no payment. All processing happens in your browser.

Are my images uploaded to a server?▼

No. All image processing happens locally in your browser. Your images never leave your device. This is especially important for sensitive photos, IDs, and personal documents.

How does the AI background remover work?▼

It uses the @imgly/background-removal library running an IS-Net neural network entirely in your browser via WebAssembly. First use downloads a ~10MB model (cached for future visits). No image data is sent to any server.

What file formats are supported?▼

JPEG, PNG, WebP, SVG, GIF, BMP, and HEIC. Conversion between all formats is supported. AI features work on JPEG and PNG inputs.

What is the maximum image size?▼

Images up to ~4000x4000px process smoothly on modern devices. Very large images may be slower. For batch processing, up to 20 images at a time is recommended.