How to convert PNG to WebP
Drag and drop your PNG files into the upload zone, or click to browse and select them from your device.
Click Convert to WebP. The conversion runs in your browser when supported, with secure server fallback if needed.
Download each converted WebP file individually, or use Download all after multiple files finish.
PNG and WebP - what's the difference?
WebP: Choose WebP when the image is going to a website or app that supports it and file size matters. JPG: Choose JPG instead when the destination does not support WebP or broader compatibility is the priority.
Why People Convert PNG to WebP
Convert PNG files to WebP online for free. This is a practical option when you want modern web delivery with smaller file sizes and good visual quality.
PNG is excellent for editing and transparency, but the files are large because PNG stores data without lossy compression. WebP uses modern compression algorithms that produce files roughly 25–35% smaller than PNG at comparable visual quality, making it the preferred format for web delivery.
That is why PNG to WebP is a common step in web publishing workflows: you keep the original PNG for editing and use WebP as the delivery format for faster page loads, lower bandwidth, and better Core Web Vitals scores.
Common situations where this helps
A PNG image needs to be served on a website with a smaller file size for faster loading.
A design export or screenshot is being used in a web project and needs a more efficient format.
You are optimising images for a CMS, e-commerce platform, or landing page that accepts WebP.
A PNG icon or illustration needs a smaller delivery version while keeping the original for editing.
Common problems and fixes
The website or platform rejects WebP files.
WebP is well supported in modern browsers but some older platforms and apps do not accept it. Check the platform's accepted formats and use JPG or PNG if WebP is not listed.
The converted WebP has a white background where the PNG was transparent.
WebP supports transparency. If transparency is not being preserved, check that the source PNG actually has transparent areas and that the converter is not forcing an opaque background mode.
I need the file to be lossless, not just smaller.
WebP supports both lossy and lossless modes. Lossless WebP is smaller than PNG but still exact — no compression artefacts. If the converter defaults to lossy, you may need a tool that supports lossless WebP output.