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PNG to WebP Converter

Convert PNG images to WebP in your browser.

Image Tools Free, no sign-up Runs in your browser

Converted on your device with the canvas API. Nothing is uploaded.

About the PNG to WebP Converter

PNG to WebP Converter re-encodes a PNG as WebP. Unlike converting to JPEG, this keeps transparency intact, which makes it the right conversion for logos, icons, illustrations and anything that sits on top of a coloured background.

The size saving is often larger than people expect. WebP can compress with or without loss, and even its lossless mode typically beats PNG by around a quarter. Allowing a little loss on an illustration usually halves the file or better, with no visible difference at normal viewing size.

WebP produces noticeably smaller files than JPG or PNG at the same visual quality, which is why it has become the default for images on the web. Every current browser supports it. Older software, and some desktop applications, still do not, so keep the original if the file has to open somewhere unpredictable.

The conversion happens inside your browser using the canvas API. The file is read from your device, drawn, and read back out in the new format. It is never sent to a server, which means there is no upload wait, no queue, no file size limit imposed by someone else's hosting, and nothing of yours sitting on a stranger's disk afterwards.

How to use the PNG to WebP Converter

  1. Choose your PNG fileSelect it, or drag it onto the drop area. It is read on your device.
  2. Check the previewThe original and the converted version are shown side by side with their file sizes.
  3. Adjust if you need toQuality and, where it applies, the colour behind transparent areas.
  4. Download the WebPThe converted file is saved straight to your downloads folder.

Features

  • Converts PNG to WebP entirely in your browser
  • Nothing is uploaded, so private images stay private
  • Original and converted file sizes shown together
  • Quality control for lossy output
  • Batch-free, instant, no queue and no watermark
  • Works on phones as well as desktops
  • Free with no sign-up and no file size account limit

Who uses this tool

The png to webp converter is used by writers, developers, students, marketers and anyone else who needs the job done once without installing software. Common cases include:

  • Meeting an upload form that only accepts one format
  • Shrinking images before putting them on a website
  • Preparing artwork for a platform that rejects your format
  • Converting a screenshot into something you can email
  • Getting a photo into the format a client asked for

Frequently asked questions

Does WebP keep transparency?

Yes. WebP has a full alpha channel, so transparent and semi-transparent areas survive the conversion exactly as they were. This is the main reason to pick WebP over JPEG for graphics.

How much smaller will the file be?

For a typical illustration or screenshot, often half the size or better. Lossless WebP alone usually beats PNG by around twenty-five percent, and allowing a little loss widens the gap considerably.

Should I use WebP for logos?

For logos on a web page, yes. For a logo that has to be opened in other software, or printed, keep an SVG or PNG master as well, because WebP support outside browsers is still patchy.

Will small text and sharp edges blur?

Not at a high quality setting. If you are converting a screenshot full of small text, keep the quality above 0.9 and compare the preview before downloading.

Is my file uploaded anywhere?

No. The conversion happens in your browser and the file never leaves your device.

What about older browsers?

Every browser released in recent years supports WebP. For complete safety, serve it inside a picture element with a PNG fallback.

If the png to webp converter is not quite what you need, these other free tools solve closely related problems.

Image Compressor

Compress and resize JPEG, PNG and WebP images privately in your browser.

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PNG to JPG Converter

Turn PNG files into JPG without uploading them anywhere.

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