PNG to WebP Converter
Convert a PNG image to WebP. Upload a PNG, choose a quality level, and download a smaller WebP file with transparency preserved.
Click to upload a PNG image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •Unlike JPG, WebP supports transparency, so transparent areas in your PNG are preserved rather than filled with white
- •WebP typically produces smaller files than PNG at similar visual quality, especially at less than 100% quality
- •Higher quality percentages preserve more detail but produce larger files - 92% is a good default balance
- •The whole file is converted locally in your browser - nothing is uploaded anywhere
Most Popular
Most users convert at 92% quality for a good balance of clarity and file size
When to Use This Tool
Convert PNG images to WebP for faster-loading web pages, since WebP typically compresses better than PNG.
Reduce the file size of PNG graphics and icons while keeping their transparency intact.
Use WebP output to cut bandwidth usage and speed up sites that display many images.
Generate WebP versions of PNG assets for apps and platforms that support the format.
How It Works
Read the uploaded PNG file and decode it using the browser's native image support
Draw the image onto a canvas, preserving its alpha transparency channel
Encode the canvas as a WebP image at the selected quality using the browser's native encoder
Display the resulting WebP, ready to preview and download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Browser native Canvas API for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
Does WebP support transparency like PNG?
Yes. Unlike JPG, WebP fully supports an alpha transparency channel, so transparent and semi-transparent areas in your PNG are preserved exactly.
Will WebP images work everywhere?
WebP is supported by all modern browsers, but some older software may not open it. If you need maximum compatibility, PNG or JPG may be safer choices.
What quality setting should I use?
92% offers a good balance between file size and visual quality for most images. Use 100% for maximum fidelity, or 60-80% if minimizing file size matters more.
Is my image uploaded to a server?
No. The entire conversion happens locally in your browser using the Canvas API. Your image never leaves your device.
What happens if my browser doesn't support WebP encoding?
All modern browsers support WebP encoding via canvas, so this is very unlikely, but if it occurs the download will simply not produce a valid WebP file.