Mugipack

A small library to encode unicode strings or objects to base64

How to use

In browser

Add library

<script type="text/javascript" src="mugipack.min.js"></script>

Instantiate and use

var mugipack = new MugiPack();
var encoded = mugipack.encode({foo:'👍',bar:'❤'});
var decoded = mugipack.decode(encoded);

In node

run npm install mugipack --save

var mugipack = require('mugipack')
var encoded = mugipack.encode({foo:'👍',bar:'❤'})
var decoded = mugipack.decode(encoded)

Rationale

btoa() is limited to ascii strings only, of course there are ways to overcome this, which depend on escaping or other libraries. I wish there was an easy way...

Algorithm

Object json-stringified, string converted to charcodes, every pair of charcodes encoded with one or two base64 symbols, resulted string prepended with dictionary (rules to convert it back) and some metadata. Numbers in dictionary and metadata converted to base62 to save more space (one symbol reserved as chunk separator '/' and one as array element separator '+', so it's 62 not 64)