Base64-url Packages

btoa and atob (ie base64/base64url encoding and decoding) support for node.js or old browsers, with the Unicode Problems fixed

url-safe 128-bit UUID strings expressed in base-64 encoding

High-performance Base64 encoder and decoder

A JavaScript library for handling URL-safe Base64 encoding and decoding, offering full compatibility with modern standards and enhanced security

The smallest and fastest Base64 implementation in JavaScript