Sparky

Sparklines are intense, simple, word-sized graphics. Sparky is a JavaScript library for drawing them dynamically in your web browser. In the words of Edward Tufte, who coined the term:

Sparklines mean that graphics are no longer cartoonish special occasions with captions and boxes, but rather a sparkline graphic can be everywhere a word or number can be: embedded in a sentence, table, headline, map, spreadsheet, graphic.

You can read more about sparklines and their many uses on Wikipedia, Tufte's site, or in his book, Beautiful Evidence.

Features

What it do

Sparky supports line , bar , and area  charts. Line and area charts can include variably colored and sized dots. Both dot and bar colors can be defined either as a single value for the entire data set, or as functions to be evaluated once per data point.

Sparky can also render larger time series graphics:

What it don’t

Sparky does not support chart axes (or any other form of labeling), or the rendering of multiple data series in a single graphic.

Web Site:http://prag.ma/code/sparky/