A collection of utility modules for Tcl. These modules provide a wide variety of functionality, from implementations of standard data structures to implementations of common networking protocols. [Open source, BSD License]
Provides extra language support needed to build large Tcl/Tk applications by introducing the notion of objects, which act as building blocks for an application.
A portable extension that provides the power of OpenSSL to Tcl programs. This extension can be used to utilize SSL encryption on top of any valid Tcl Channel - not just sockets!