X Northern Captain is a file manager for X Windows. XNC has the same ideology as Norton Commander but also many additional and specific functions including a Virtual File System with support for tar, zip, rar, rpm, deb, bzip2, and lha archives, FTP support, built-in xterminal, viewer for JPEG, GIF, BMP, TGA, XPM, and XBM formats, an editor, users menu, extensions association, bookmarks for frequently used directories, and more.
The X Printing Panel (XPP) is a tool for choosing the desired printer out of a list of all printers available under CUPS and for setting printer options by an easy-to-use GUI. One simply calls the program instead of the usual utilities (lpr or lp) at the command line or out of applications.
X-Tract is an XML Script processor. XML Script is a fully XML compliant language, specifically designed for handling XML data. XML Script is more powerful than XSL, and can perform many XSL functions more efficiently. X-Tract can be used on the command line, or can be run from a web server to handle CGI queries.
x10mp3 is a plugin for XMMS to control it using X10's Mp3Remote, which comes with Mp3Anywhere, Mp3Anywhere 2000, or DVDAnywhere. It has all the functionality of X10's BOOM2000 software for Windows, plus other handy features like muting, skipping around inside tracks, and balance control.
XaoS is a fast, portable, real-time, and interactive fractal zoomer. It displays the Mandelbrot set (among other escape time fractals) and allows you zoom smoothly into the fractal. Various coloring modes are provided for both the points inside and outside the selected set. In addition, switching between Julia and Mandelbrot fractal types and on-the-fly plane switching is provided.
Xbase (formerly known as xdb) is an XBase compatible C++ class library. It provides C and C++ programmers with a cross-platform class and function library for manipulating Xbase type datafiles and indexes. There is support for .DBF and .NDX files (including support for Dbase III and IV memo fields, dates, and record and file locking), and limited support is also supplied for .NTX (clipper index) files. There is also an HTML user interface class which works well with the Apache Web Server.