# packbits  > [PackBits](https://en.wikipedia.org/wiki/PackBits) implementation in JavaScript. ## Installation ```bash npm install @fiahfy/packbits ``` ## Usage ### Default #### Encoding ```js import { encode } from '@fiahfy/packbits' console.log(buf) // const encoded = encode(buf) console.log(encoded) // ``` #### Decoding ```js import { decode } from '@fiahfy/packbits' console.log(buf) // const decoded = decode(buf) console.log(decoded) // ``` ### ICNS format In [Apple Icon Image format](https://en.wikipedia.org/wiki/Apple_Icon_Image_format), pixel data are often compressed (per channel) with a format similar to PackBits. #### Encoding ```js import { encode } from '@fiahfy/packbits' console.log(buf) // const encoded = encode(buf, { format: 'icns' }) console.log(encoded) // ``` #### Decoding ```js import { decode } from '@fiahfy/packbits' console.log(buf) // const decoded = decode(buf, { format: 'icns' }) console.log(decoded) // ```