PNG to WebP Converter

Convert PNG images to WebP and cut file size substantially without losing transparency. Ideal for speeding up a website.

  • 100% private
  • No sign-up
  • No watermark
  • Unlimited files
Drop PNG files hereor tap to browse, or paste with Ctrl+V · nothing is uploaded

    Conversion happens on your device using your browser's own image engine. Your files are never uploaded, so there is no size limit beyond your device's memory.

    Why WebP is worth the switch

    WebP typically produces files 25% to 35% smaller than PNG for the same visual quality, and it keeps the alpha channel that JPG lacks. For a website, that translates directly into faster page loads and better Core Web Vitals scores, which in turn affect search ranking.

    Browser support is no longer a concern — every current version of Chrome, Firefox, Safari and Edge displays WebP natively.

    Choosing a setting

    For interface graphics, icons and logos, use Best quality to keep edges crisp. For large photographic backgrounds, Balanced usually delivers a dramatic size reduction that visitors will never notice.

    You can also cap the longest edge during conversion. Serving a 4000px image into an 800px slot is one of the most common causes of a slow page, and resizing while you convert fixes both problems at once.

    Frequently asked questions

    Are my files uploaded to a server?

    No. The conversion runs inside your browser using your device's own processor. Your files are never transmitted anywhere, which is why the tool works even if you disconnect from the internet after the page loads.

    Do all browsers support WebP?

    Yes. Chrome, Firefox, Edge, Safari and all modern mobile browsers support WebP. Very old software outside the browser may not, which is when PNG or JPG is the safer choice.

    Is transparency preserved?

    Yes, WebP supports full alpha transparency just as PNG does.

    Is there a file limit or a paywall?

    There is no account, no watermark, and no upload cap. Because your device does the work, the only practical limit is your available memory. The site is funded by ads, not subscriptions.

    Further reading

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