The fastest function to convert a hexadecimal string to a Uint8Array.
npm install --save hex-to-uint8
import toUint8 from 'hex-to-uint8';
const hex = '48656c6c6f2c20776f726c6421';
const uint8 = toUint8 ( hex ); // => Uint8Array(13) [ 72, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100, 33 ]
MIT © Fabio Spampinato