You download an image from a website and it saves as a .webp file. You try to open it and your image editor says "unsupported format". You try to attach it and the form requires a PNG. WebP is an excellent format for the web but its compatibility outside of browsers is still patchy — and knowing how to convert it quickly solves that problem for good.
WebP is an image format developed by Google and released in 2010. It is designed specifically for the web, combining the best features of JPG (lossy compression for photographs) and PNG (lossless compression and transparency) in a single format, while achieving better compression than either.
A WebP photo typically occupies 25–35% less space than an equivalent JPG at the same perceptual quality. A WebP graphic with transparency is typically 20–40% smaller than an equivalent PNG. These savings add up significantly across a website with hundreds of images.
Google Chrome, Firefox, Safari (since iOS 14), Edge, and all modern mobile browsers support WebP natively. Most websites that serve images — particularly image-heavy sites like e-commerce stores and news sites — now serve WebP where the browser supports it.
Despite near-universal browser support, WebP is not universally supported everywhere else:
It depends on the source WebP:
Lossless WebP → PNG: No quality loss whatsoever. A lossless WebP stores every pixel exactly, and converting it to PNG (also lossless) preserves those pixels perfectly.
Lossy WebP → PNG: No additional quality loss. The compression artifacts from the original lossy WebP encoding are baked into the pixel values. Converting those pixels to PNG stores them exactly as they are — no new degradation is introduced. The output PNG will look identical to the WebP, just in a different container.
What you will notice is that the PNG output is larger than the WebP input. This is expected — WebP's compression algorithm is more efficient than PNG's. The PNG is not "worse quality" — it contains the same pixel data, just stored less efficiently.
No software installation or account needed:
The conversion runs in your browser using the Canvas API: the browser decodes the WebP, draws it to a canvas, and exports the canvas as PNG. Your files never leave your device.
Why is the PNG file larger than the WebP?
WebP uses more aggressive compression than PNG. Both formats store the same visual content — the PNG is not higher quality, it is just stored less efficiently. If file size matters, you can compress the PNG afterwards using an image compressor.
Can I convert PNG back to WebP?
Not with this tool — use an image compressor or resizer set to WebP output. Most modern web tools and build pipelines can convert to WebP automatically.
Does this tool handle animated WebP?
Only the first frame of an animated WebP will be extracted as a static PNG. Animated WebP conversion to animated formats is not supported.
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