WebP to PNG via CLI

Decode WebP to PNG with dwebp, keeping transparency.

Packages to install

The webp package includes dwebp, which decodes WebP to PNG and other rasters.

webp

sudo apt-get update
sudo apt-get install -y webp

How to run the command

dwebp reads the WebP and writes PNG to the -o file. This is the inverse of cwebp.

dwebp photo.webp -o photo.png

Dockerfile example

Build a minimal Ubuntu image with the required packages and run the conversion inside the container.

FROM ubuntu:24.04

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        webp && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /work

docker build -t webp-to-png .
docker run --rm -v "$PWD:/work" -w /work webp-to-png \
  dwebp photo.webp -o photo.png

Example commands

Run these locally after installing the packages, or inside the container from the Dockerfile.

dwebp photo.webp -o photo.png

dwebp -nofancy photo.webp -o photo.png