Lazarus is a RAD Object Pascal Development IDE for use with Free Pascal. It is the open source equivalent of the Delphi VCL, designed to be widget-independent and to work on any platform where Free Pascal can be found.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.