beatgammit/base64-js

Base64-js is a JavaScript library that provides base64 encoding and decoding functionality for binary data in pure JavaScript. It is useful for developers who need to handle base64 encoding/decoding in web browsers or Node.js environments where built-in text-based base64 functions are insufficient for binary data. The library offers three main methods: `byteLength`, `toByteArray`, and `fromByteArray`, and is licensed under the MIT license.