From collectd Wiki

Visage
Type:	Web
License:	MIT license
Language:	Ruby, JavaScript
Author:	Lindsay Holmwood
List of front-ends
Collectd Graph Panel Collectd-web CollectGraph Collection 3 Collection 4 collectw EcoStats Graphs on Rails Heymon kcollectd Jarmon Visage

Visage is a web interface for viewing collectd statistics. It draws graphs in the browser asynchronously using SVG & JavaScript, and provides profile-based navigation.

It also provides a JSON interface onto collectd's RRD data, giving you an easy way to mash up the data.

Dependencies

• Ruby

Links

• http://visage-app.com/
  Website + quickstart
• http://visage.unstated.net/nadia/cpu+load
  Live demo
• http://github.com/auxesis/visage
  Code + full README