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WebP to PNG Converter

Data & Digital

Convert WebP images to PNG free online. Drag, drop, and download instantly — the conversion runs entirely in your browser, so nothing is ever uploaded.

Reviewed by the thecalcu.com team · Last updated July 29, 2026

Drag & drop a WebP file here

or click to browse — max 15.00 MB, stays on your device

What is a WebP to PNG?

A WebP to PNG Converter takes an image saved in Google's WebP format and re-encodes it as a PNG file. WebP was designed to produce smaller files than PNG or JPG at comparable quality, which is why it's become common for web-optimized images, but not every image editor, older application, or document format supports opening WebP files directly. Converting to PNG trades some of that file-size efficiency for near-universal compatibility.

This tool performs the conversion entirely in your browser using the Canvas API, which can natively decode WebP: it draws the decoded image onto a canvas and exports it as PNG, no upload, no server round-trip. It pairs naturally with the PNG to WebP Converter for the reverse direction, and with the JPG to PNG Converter if you're standardizing a mix of image formats into PNG.

Why Use a WebP to PNG Converter?

Downloaded images from the web are increasingly served as WebP, but plenty of everyday tools, some image editors, older presentation software, and certain upload fields, still expect PNG or JPG. Converting on demand avoids hunting for a WebP-compatible version of whatever software you're using.

Two concrete situations this solves: converting a WebP image saved from a website into PNG so it opens correctly in an editor that doesn't support WebP, and standardizing a folder of mixed WebP and PNG assets into a single consistent format for a design or documentation project.

Who Should Use This Converter?

  • Designers and content creators who saved an image from the web as WebP but need PNG for an editing tool without WebP support.
  • Developers converting WebP assets into PNG for platforms or build pipelines that require it.
  • Writers and bloggers standardizing downloaded WebP images into PNG for consistent handling across documents.
  • Anyone archiving images who prefers PNG's broad, long-term software compatibility over WebP's narrower support in older tools.
  • Users comparing formats who want to check WebP's file size savings against an equivalent PNG to JPG conversion.

What Insights Does the WebP to PNG Converter Give You?

Once converted, the tool shows your Original (WebP) and Converted (PNG) side by side, along with the file size of each and the image's pixel dimensions, useful for confirming the result looks correct and gauging how much larger the lossless PNG is compared to the source WebP.

Because transparency carries over automatically, there's no background setting to configure for this conversion, any alpha channel in the WebP is preserved pixel-for-pixel in the PNG output.

How to use this WebP to PNG calculator

  1. Drag and drop a .webp file onto the upload area, or click it to browse your device.
  2. Review the file preview showing the image's dimensions and file size.
  3. Click Convert to PNG.
  4. Compare the Original (WebP) and Converted (PNG) previews and file sizes side by side.
  5. Click Download PNG to save the file, or Copy PNG to copy it directly to your clipboard.
  6. Click Change to start over with a different file.

Formula & Methodology

The browser decodes the WebP's compressed pixel data (using either WebP's lossy VP8-based codec or its lossless mode, depending on how the file was saved) into a raw RGBA bitmap, draws that bitmap onto an HTML canvas, then calls the canvas's PNG export (canvas.toBlob(..., "image/png")) to compress it losslessly.

For example, a 1920×1080px WebP photo at 180KB will typically produce a PNG in the 1.5–3MB range once re-encoded, since PNG's general-purpose lossless compression can't match WebP's more specialized image-focused compression, the size increase reflects PNG's compatibility trade-off, not any change in visual content.

Frequently Asked Questions

It decodes a WebP image, a format Google introduced for smaller, faster-loading web images, using your browser's native decoder, draws it onto an HTML canvas, and re-encodes the pixel data as a lossless PNG file. Any transparency in the source WebP is preserved in the resulting PNG.
The entire conversion runs in your browser using the Canvas API, and the file never leaves your device. This makes the tool safe for images you'd rather not send to a third-party server.
WebP offers smaller file sizes, but some older software, image editors, and platforms still don't support it, while PNG is understood almost everywhere. Converting to PNG trades some file size back for maximum compatibility with tools that predate WebP support.
If the source WebP was saved losslessly, no quality is lost, PNG is also lossless, so the pixels transfer exactly. If the WebP used lossy compression, whatever detail that compression already discarded stays discarded; PNG can't recover it, but it also won't introduce any further loss.
Yes, WebP supports an alpha channel just like PNG, and this tool preserves any transparent or semi-transparent pixels exactly when re-encoding to PNG. No background color is needed for this conversion.
Drag and drop your .webp file onto the upload area, or click it to browse your device, then click Convert to PNG. The converted PNG appears next to your original file within moments, ready to download or copy.
WebP typically produces smaller files than PNG or JPG at equivalent visual quality, which reduces page load time and bandwidth usage, a meaningful advantage for image-heavy websites. Converting back to PNG is useful when you need to move an asset out of a web-optimized pipeline into a general-purpose editing or sharing context.
You can upload a WebP up to 15MB, which comfortably covers typical web assets, icons, and photos. Very large files may take a moment longer to decode and re-encode.
Yes, the Copy PNG button copies the converted image directly to your clipboard in supporting browsers, so you can paste it straight into another application. If your browser doesn't support clipboard image writes, use Download PNG instead.
All current major browsers, Chrome, Firefox, Edge, and Safari, support both displaying and decoding WebP, which is what makes this in-browser conversion possible. Only very old browser versions lack support.
Usually yes, WebP's compression is generally more efficient than PNG's, so converting to PNG often increases file size, sometimes significantly for photographic images. This is the trade-off for gaining broader software compatibility.
Also known as
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