The Autopsy Forensic Browser is a graphical interface to the The Sleuth Kit and other digital investigation tools. Together, they can analyze Windows and UNIX disks and file systems (NTFS, FAT, UFS1/2, Ext2/3, etc.).
Autopsy 2 is an old-school HTML-based interface. You can get the list of official features at the sleuthkit.org site.
- The Autopsy User's Guide has information on how to use the tool in an investigation.
- The Autopsy Developer's Guide has information on contributing to Autopsy and developing for it. Note that Autopsy 3 was designed as platform to integrate other digital forensics tools. The developer's guide also outlines how to develop modules to integrate into Autopsy.