Smoothie Charts is a really small charting library designed for live streaming data. Joe Walnes wanted to show real time streaming data pushed over a WebSocket. Although many of the charting libraries allow you to dynamically update data, none have really been optimized for a constant stream of data.

Smoothie Charts only works on Chrome and Safari. And it doesn’t support legends. Or pie-charts. In fact, it’s inferior in virtually every way to a library like Flot. But, it’s very good at displaying streaming data.

Requirements: Chrome and Safari 5
Demo: http://smoothiecharts.org/
License: MIT License