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RoundPatch

PNG to WebP converter.

Convert PNG to WebP free, in bulk and right in your browser. Shrink PNG graphics and screenshots for faster pages while keeping transparency.

  • Free* · 3 uses without sign-up
  • Files never leave your device
  • No watermark

PNG is lossless, so quality doesn’t apply. Use Resize to make files smaller, or choose WebP.

More options
Choose PNG images or drag & drop · paste with Ctrl/⌘+V JPG, PNG or WebP · up to 30 images · processed on your device

    How it works

    Three simple steps.

    1. 1

      Add your PNG images

      Drop up to 30 files, click to browse, or paste from your clipboard.

    2. 2

      Adjust if you like

      Move the quality slider and watch the new file sizes update live.

    3. 3

      Download WebP

      Download each image, or everything at once as a ZIP.

    What is PNG?

    Portable Network Graphics

    PNG is a lossless format: it keeps every pixel exactly as it is and supports transparency. That makes it ideal for logos, icons, screenshots and graphics with sharp edges or text. The trade-off is file size: photos saved as PNG are usually much larger than the same photo as JPG or WebP.

    What is WebP?

    Google’s modern web image format

    WebP was developed by Google for the web. It supports both lossy and lossless compression as well as transparency, and typically produces smaller files than JPG or PNG at similar visual quality. It is supported by all major modern browsers, which makes it a strong default for websites and landing pages.

    FAQ

    Questions, answered.

    Need help with images at scale? Talk to our team.

    How do I convert PNG to WebP?

    Drop your PNG images into the converter above. They are converted to WebP instantly in your browser, and you can download them one by one or as a ZIP.

    Is this PNG to WebP converter free?

    Yes, with no watermark and no ads. Use it 3 times without signing up; after that, a free one-time sign-up gives you full access. You can convert up to 30 images at a time. Access is subject to our Terms of Use.

    Are my images uploaded?

    No. Conversion happens entirely on your device, in your browser. Your images are never sent to a server.

    Will I lose quality?

    At the default quality most people see no visible difference. Use the quality slider and the before-and-after comparison to find the balance you like.

    What happens to transparency?

    Transparency is preserved.

    Want your visuals designed, not just converted?

    Our senior designers create on-brand social, ad, web and e-commerce assets — at scale, with AI in the workflow.

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