| pjs | Classes for javascript that don't suck. |
| selfish | Class-free, pure prototypal inheritance |
| inherits | Easy simple tiny inheritance in JavaScript |
| minion | Classical Inheritance for JavaScript |
| inherit | Inheritance module for node |
| node-inherit | Inheritance module for node |
| class-js | Simple OO Class factory |
| loom | A simple four method API for Differential Inheritance and AOP |
| extendables | Simple and elegant inheritance in JS. |
| Class | Port of Prototype.js inheritance implementation for Node.js. |
| resig-class | http://ejohn.org/blog/simple-javascript-inheritance/ |
| js-class | A JavaScript class framework for NodeJS based on JavaScriptMVC $.Class and John Resig's Simple JavaScript inheritance. |
| id8 | id8 is a small library designed to help you write object-oriented code that is easy to maintain and scale. id8 contains a Class constructor, as well as full-featured Observer, Callback and Hash classes. |
| simple-class | John Resig's simple class, wrapped with common js for node |
| nobj | ubersimple prototypal inheritance with reference to Io language |
| object.extend | Object.extend() as jQuery.extend() |