MSF eXploit Builder is a Windows GUI to build Metasploit Framework exploit modules. It will help you to edit/modify/create/test exploit modules for the Metasploit Framework. Full source release. It includes a built-in fuzzer, a win32 debugger, and a lot of tools used in the process of exploit development.
You can download it from the following link: https://packetstormsecurity.com/files/download/71259/MSF-XB11.rar
Source: https://packetstormsecurity.com/files/71259/MSF-XB11.rar.html