Convert WebP to PNG — Free WebP to PNG Converter

How to Convert WebP to PNG

Why Convert WebP to PNG?

WebP is a modern format that works great on the web, but many desktop applications, print services, and older tools still cannot open WebP files. Converting WebP to PNG gives you a universally compatible image that works everywhere — from Photoshop to PowerPoint to your local print shop.

PNG uses lossless compression, so the converted file preserves every pixel from the WebP original. If the WebP had transparency, the PNG will keep it. This makes PNG the safest choice when you need maximum compatibility without losing image data.

LeanImg's decoder runs right in the page. Your WebP files are read locally, the PNGs are written locally, and the network is never involved. Drop files in, take files out.

The tradeoff is file size: PNGs are typically 2–3 times larger than WebP files. If size matters and you just need wide compatibility, JPG is the smaller-file alternative — and the PNG compressor recovers some of the difference afterward.

Compress your PNG · WebP to JPG

What changes going from WebP to PNG

Whether this conversion is lossless depends on which kind of WebP you start with. A lossless WebP decodes to the exact pixels that went into it, and the PNG you get back is a faithful copy, so the round trip costs nothing beyond bytes. A lossy WebP has already been through VP8's quantizer, and the PNG preserves that result exactly, including any smearing in saturated reds that the 4:2:0 chroma step left behind.

The 8-bit alpha channel carries over unchanged, and the PNG is written with a full RGBA channel set and then tightened by oxipng at level 3. Metadata doesn't make the trip: EXIF, XMP and ICC chunks inside a WebP container are dropped, and the output is treated as sRGB by whatever opens it. One trap to know about: an animated WebP is decoded as its first frame only, and unlike an animated GIF the converter won't warn you, because the frame check only inspects GIF files. Turn a sticker into PNG and you get a single still.

The practical reason to do this is software that predates WebP. Photoshop only read WebP natively from version 23.2 in early 2022, and plenty of print workflows and older Office installs still reject it. The price is size: a photographic WebP typically comes back several times larger as PNG, and flat graphics grow less. Don't convert a WebP to PNG just to email it. PNG opens everywhere, but so does JPEG at a fraction of the size, and if the picture has no transparency that's the better target.

WebP vs PNG

What is a PNG file?

PNG became a W3C Recommendation in October 1996, designed after Unisys began enforcing the LZW patent that GIF relied on. It is lossless and only lossless: one compression method, deflate, applied after per-scanline filters. Every tool advertising a lossy PNG is really quantizing to a 256 color palette before writing an ordinary lossless PNG. Transparency comes in three grades: a real alpha channel at 8 or 16 bits, up to 256 alpha levels from a palette table, or a single keyed color.

How to open a PNG file

Nothing needs installing anywhere: Preview and Quick Look on macOS, Photos and Paint on Windows, and libpng as a base dependency on Linux mean GIMP, Krita and every GTK or Qt application read it. The interesting tools are the optimizers — optipng, oxipng and zopflipng rewrite the file losslessly, and LeanImg's compressor runs oxipng at optimization level 3 without ever changing a pixel.

Convert other formats to PNG

Convert WebP to other formats

• WebP to JPG
• WebP to AVIF

Frequently Asked Questions