convert png to windows ico format

中文

npm install --save-dev png-to-ico

npm script:

png-to-ico electron.png > app.ico

npx script:

npx png-to-ico -- electron.png > app.ico

This way you can run the script without installing the package into your project

programming usage:

import fs from 'fs';
import pngToIco from 'png-to-ico';

try {
  const buf = await pngToIco('electron.png');
  fs.writeFileSync('app.ico', buf);
} catch (error) {
  console.error(error);
}

If you want to control what sizes should be in the icon file, pass an array of files:

const buf = await pngToIco(['electron16x16.png', 'electron32x32.png']);
fs.writeFileSync('app.ico', buf);

When I work on an electron project, it's always a nightmare to create ico for windows.
There're so many options out there like apps that make icon for you, photoshop plugin. But none of them satisfy me.
I want a JavaScript module that works like the .NET ico tool, which automatically generate different sizes for ico file.

Based on pngjs: Simple PNG encoder/decoder library written entirely in JavaScript for Node, with zero external or native dependencies.
In other words, png-to-ico is written purely in JavaScript, which is great for windows user.

MIT