This site includes four major projects.
The Sleuth Kit® is a collection of command line digital investigation tools. The tools run on Windows and Unix platforms and analyzes the common file systems.
Autopsy® is a graphical interface to The Sleuth Kit and other tools. This makes it much easier and faster to investigate a system.
Sleuth Kit Hadoop Framework is a project to use cloud computing to analyze hard drives on a large scale.
mac-robber is a tool that will collect temporal data from mounted file systems. The data can be used to make a timeline of file activity on the system using tools from The Sleuth Kit.