Le-Tools.com provides open source softwares that have been created for investigators, IT analysts and researchers, but they can also be usefull for anyone.
DumpItBlue+
Google Chrome Extension. Complement to DumpItBlue tool.
RDP-Parser
RDP-Parser extracts RDP activities from Microsoft Windows Event Logs.
ConvertShellcode
ConvertShellcode takes shellcode as input and disassembles it in a list of instructions in assembly language.
XL-Toolkit
To install all the tools of the XL-Toolkit, you should follow these instructions.
XL-Parser
XL-Parser provides a bunch of functions for data extraction and analysis. It also provides web log analysis features like a tool for detection of suspicious activities.
XL-Whois
XL-Whois is a tool to gather whois information on domain names and IP addresses. It stores the responses into a database that can be used with other tools of the XL-Toolkit.
XL-Tools
XL-Tools provides a bunch of functions for list of strings like sorting, converting, replacing, date and time utilities, etc.
XL-FileTools
XL-FileTools provides a bunch of functions for files like filtering, listing, copying, moving and renaming.
XL-ParseMails
XL-ParseMails provides some functions to analyse emails.