A solid toolset is at the core of any successful digital forensics program, an earlier article that I wrote for CSOonline. Although every toolset is different depending on an organization’s needs, some categories should be in all forensics toolkits. In this roundup for CSOonline, I describe some of the more popular tools, many of which are free to download. I have partitioned them into five categories: overall analysis suites (such as the SANS workstation shown here), disk imagers, live CDs, network analysis tools, e-discovery and specialized tools for email and mobile analysis.