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PNG to WebP Converter

Shrink PNG images into WebP files that keep their transparent background.

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or drop files here

Accepts PNG

Encrypted upload. Files are deleted automatically after 1 hour.

About PNG to WebP

PNG to WebP is the easy fix for heavy PNGs on a website, such as logos, product cut-outs, screenshots and illustrations. WebP supports transparency just like PNG, so a logo on a see-through background keeps its clean edges, but the file is often a fraction of the size. Where WebP isn't accepted and you don't need transparency, PNG to JPG is another way to make the file smaller.

Two settings matter. Lossless keeps every pixel exactly and suits flat graphics, icons and screenshots with text. Leave it off for photos and detailed artwork and use Quality, 90 by default, where lossy compression saves the most. Under More options you can resize the image during the same conversion.

How to use PNG to WebP

  1. 1
    Upload the PNG

    Click Choose file or drop the .png on the page.

  2. 2
    Choose Lossless or Quality

    Tick Lossless for graphics and screenshots, or set Quality for photos. Resizing is under More options.

  3. 3
    Click PNG to WebP

    We encode the WebP on our server, alpha channel included.

  4. 4
    Download the WebP

    Save the smaller file and use it wherever the PNG was.

Why use Cubfile for this

  • Transparency kept

    Transparent and semi-transparent pixels carry over, so shadows and soft edges look right on any background.

  • Lossless mode

    An exact copy of every pixel, and for flat artwork usually smaller than the PNG it came from.

  • Lossy for photos

    Quality from 10 to 100 gives the biggest savings on photographic images.

  • Resize while converting

    Scale down oversized images by width, height, box or percentage.

FAQ

PNG to WebP: questions and answers

Does PNG to WebP keep the transparent background?
Yes, in both lossy and lossless mode. The alpha channel is stored in the WebP, so the image stays see-through.
Should I use Lossless when converting PNG to WebP?
For logos, icons, charts and screenshots with text, yes, since they stay pixel-perfect and still get smaller. For photos, lossy at quality 80 to 90 usually gives a much smaller file with no visible difference.
Can I use WebP instead of PNG on my website?
Yes. All current major browsers display WebP, and you can swap the file in the same img tag. Keep the PNG as a backup for very old browsers or software that can't open WebP. If the PNG is gone, WebP to PNG turns the WebP back into one, transparency included.
Is there a file size limit for PNG to WebP?
Free uploads can be up to 50 MB, VIP up to 1 GB. Free accounts get 2 tasks a day; visitors can try 2 before signing up.
Is it safe to convert client logos here?
Yes. Files are uploaded over HTTPS, handled in an isolated process and deleted automatically after one hour. Nobody here opens them, and they're never shared or sold.
Share PNG to WebP with a friendIt runs in any browser, and they can try it without signing up.

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