Texdoc is a command line program to find and view documentation in TeX Live. Its primary function is to locate relevant documentation for a given keyword (typically, a LaTeX package name) on your disk, and open it in an appropriate viewer.
texdoc.net provides an online TeX and LaTeX documentation lookup system with an interface similar to the texdoc program.
You can browse texdoc's documentation online: user manual (pdf) and short man page (pdf, html).
Texdoc is part of the TeX Live distribution. (A
texdoc command is available in MiKTeX, but it is merely a shortcut for
mthelp, developed independently.)
The texdoc mailing list is available for bug reports (including finding the wrong file for a particular keyword), feature requests, patches, etc. You don't need to subscribe to the list in order to post a message or receive replies.
Texdoc's development is hosted on GitHub. Here are download and installation instructions for Unix and Windows.
Texdoc needs new (co-)developer(s)/maintainer(s). Please write the mailing list if you are interested and have Lua and TeX knowledge. See mailing list archives for a variety of pending issues.
The current incarnation of Texdoc was primarily written by Manuel
Pégourié-Gonnard. Previous versions with contributions
from Reinhard Kotucha. First
texlua versions by Frank
Küster. Earlier shell script versions by Thomas Esser, David
Aspinall, and Simon Wilkinson.
Texdoc is free software. It is distributed under the terms of the GNU GPL, version 3 or later, as of version 0.42. Earlier versions were in the public domain.