PNG to WebP
Efficiently convert PNG images to WebP format directly in your browser.
Fast. Local. Effortless.
Manage your sensitive files with zero uploads. Everything happens directly in your browser.
Select PNGs
Upload the PNG images you want to convert to WebP format.
Fast Processing
Wait a split second as we transform your files without any quality loss.
Save as WebP
Download your converted WebP images individually or together.
Optimize Images with PNG to WebP
Privacy-First Image Conversion
Frequently Asked Questions
Everything you need to know about our private, browser-based file tools.
Still have questions? Contact us or check our How it Works page.
Why Convert PNG to WebP?
PNG files are lossless and often large. A single PNG screenshot of a UI, a logo with transparency, or a product image against a transparent background can easily be 1–5 MB. WebP achieves 25–35% smaller file sizes than PNG for the same content — while fully preserving transparency (alpha channel) and maintaining visual quality indistinguishable from the original.
For web developers, this is the clearest win available in image optimization. Every PNG on a website that can be replaced with an equivalent WebP reduces page weight and improves loading speed. Google's PageSpeed Insights and Lighthouse both specifically flag "serve images in next-gen formats" as an opportunity when PNG is used where WebP would perform better.
Unlike conversion to JPG, converting PNG to WebP preserves transparency exactly. A logo with a transparent background in PNG will have the same transparent background in WebP — with a smaller file. This makes PNG to WebP the superior conversion for web UI assets, icons, illustrations, and logos.
Related Tools and Workflow Connection
For additional size reduction beyond what WebP achieves, AVIF provides roughly 50% smaller files than PNG. If you need to process entire image batches before converting, the Image Compressor reduces starting sizes. For JPG source images, use the JPG to WebP converter instead. All processing is local — images never leave your device.
Frequently Asked Questions
Is transparency preserved when converting PNG to WebP?
Yes. WebP fully supports alpha transparency. Any transparent areas in your PNG will be preserved exactly in the output WebP file.
How much smaller will the WebP be?
Typically 25–35% smaller than the PNG at equivalent visual quality. Graphics with large areas of solid color may compress more. Complex photographic PNGs may compress less.
Are my images uploaded to a server?
No. Conversion uses the browser's local Canvas API. Your images are processed in browser memory and never transmitted externally.
Does this work on mobile?
Yes. Chrome on Android and Safari on iOS both support WebP encoding and the local conversion process. Works identically to the desktop experience.
Can I convert multiple PNGs at once?
Yes. Upload a batch of PNG files and convert them all in one session with individual download options for each.
Is this free?
Completely free. No account, no limits, no watermarks.