JavaScript Optimizer is a technical component designed to organize Web resources (JavaScript files, CSS) on the server side and to optimize (compression, merge and versioning) their delivery to the client's browser.
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.