Autopsy is a graphical interface to The Sleuth Kit and other open source digital forensics tools.
Autopsy 3 was a complete rewrite from Autopsy 2 to make it Java-based.
Autopsy 4 improves on Autopsy 3 by supporting collaboration on a single case by multiple users.
Although Autopsy is designed to be cross-platform (Windows, Linux, MacOSX), the current version
is fully functional and fully tested only on Windows. We have run it on XP, Vista, and Windows
7 with no problems.
Autopsy 4 is released under the Apache 2.0 license.
Some libraries Autopsy uses may have different, but similar, open source licenses.