Microjs – Micro-Frameworks and Micro-Libraries for Fun and Profit

Microjs is a large collection of micro-frameworks and micro-libraries, with most under 2kb in size. Get exactly what you need and nothing more, keeping the load light.
Micro-frameworks are definitely the pocketknives of the JavaScript library world: short, sweet, to the point. And at 5k and under, micro-frameworks are very very portable.