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100% client-side

Convert PNG to WEBP in Your Browser

One-click PNG → WEBP conversion that runs entirely on your device. Nothing is uploaded.

No files selected yet. Drag & drop photos, documents or click browse above.

How PNG to WEBP conversion works

Need to convert PNG files to WEBP? PixelKit does it in one click, right in your browser. The converter reads your PNG file locally, renders it to a canvas, and re-encodes it as WEBP using the browser's own image pipeline. Because nothing is sent to a server, there is no upload wait, no file-size limit from a backend, and no privacy risk. Your photos, ID scans and documents stay on your device the entire time.

The tool works offline after the first page load, on mobile and desktop, and produces standard WEBP files accepted by portals, email clients and design apps. Drag a PNG file, pick WEBP as the output, and download the result. Multiple files can be converted in one batch, and results appear side by side for easy comparison.

No account, no watermark, no email gate. Just the file you need, at the size you need it.

Frequently asked questions

Is this PNG to WEBP converter really free?
Yes. PixelKit is free to use with no watermarks, no file limits, and no account. The tool runs entirely in your browser, so there is no server cost that would justify a paywall.
Are my PNG files uploaded anywhere?
No. The conversion happens locally using your browser's canvas and Web Worker APIs. Files never leave your device, and nothing is stored after you close the tab.
What is the maximum PNG file size?
There is no server-side limit because there is no server. Very large files may be limited only by your device's available memory — usually several hundred MB on desktop and tens of MB on mobile.

Common use cases

Website & CMS uploads

WordPress, Shopify and Webflow all have max upload sizes. Convert to WEBP and target exact KBs to keep pages fast and Core Web Vitals green.