Tcllib is  a collection  of utility  modules for Tcl.  The intent  is to
collect commonly  used function into  a single library, which  users can
rely on to be available and stable.

The latest version of tcllib, 0.8, includes the following modules: 
	base64	base64 encoder and decoder
	cmdline	command line argument processor similar to opt
	counter Event counters, interval timers, and histogram display
	fileutil Tcl implementations of some standard Unix utilities
	ftp	FTP client library
	ftpd	FTP server
	html	HTML generation procedures. This uses ncgi.
	javascript Javascript generation procedures.
	math	common math functions like min, max, and others
	mime	MIME encoder and decoder
	ncgi	new CGI processing module
	nntp	NNTP (news) client
	pop3	POP3 protocol implementation
	profiler function level Tcl source code profiler
	struct	Tcl implementations of common data structures
	textutil Text processing utilities
	uri	URI parsing module

WWW: http://dev.scriptics.com/software/tcllib/