base58

Base58 encoding and decoding

node-base58

A Base58 encoding and decoding library for Node.js.

Base58 allows you to represent a numeric value with fewer characters, useful for short URLs among other things. Flickr is one the biggest sites that makes use of it for short photo URLs.

For example 6857269519 becomes brXijP when Base58 encoded, and hence the Flickr short URL is: http://flic.kr/p/brXijP

npm install base58
var Base58 = require('base58');
Base58.encode(6857269519); // 'brXijP' 
Base58.decode('brXijP');   // 6857269519 

This package is more or less a port of the Base58 Ruby Gem by the same name.

Released under the MIT license. Copyright (c) 2012 Jim Myhrberg.