rxvt-unicode is a clone of the well known terminal emulator rxvt, modified to store text in Unicode and to use locale-correct input and output. It also supports mixing multiple fonts at the same time, including Xft fonts, real transparency, and an optional embedded Perl interpreter that allows you to extend your terminal easily.
The Heirloom Toolchest is a collection of standard Unix utilities. It was derived from original Unix material released as open source by Caldera and Sun, and contains multiple versions of each utility corresponding to SVID3/SVR4, SVID4/SVR4.2MP, POSIX.2-1992/SUSV2, POSIX.1-2001/SUSV3, and 4BSD (SVR4 /usr/ucb). It processes lines of arbitrary length and in many cases binary input data, supports characters in UTF-8 and many East Asian encodings, and contains more than 100 individual utilities including bc, cpio, diff, ed, file, find, grep, man, nawk, oawk, pax, ps, sed, sort, spell, and tar. Extensive documentation is included.
uCal is a PHP class that can be used to convert dates between the Hijri and Gregorian calendars. It features the ability to convert dates between Hijri and Gregorian calendars and vice-versa. It is fully compatible with Umm Al-Qura. Dates formatted like the PHP date() function can be returned. English/Arabic formatted Hijri and Gregorian dates and times can be output. Versions of the date() and mktime() functions for Hijri are also provided.
Kumulate gives a graphical overview of progress on a tree of translation (.po) files. For each one, as well as showing the actual statistics, it will show a box: the horizontal (left-right) axis is a color-coded representation of progress on the translation, and the vertical (up-down) axis represents the relative size of the module or file.
Konjugator helps with learning or interpreting verb forms in Welsh. It produces a list of around 200,000 inflected verb forms for almost 4,000 Welsh verbs, along with English glosses and parsing information. It attempts to conjugate Welsh verbs that are unknown to it, and will give parsing details for random Welsh verb forms if these are known to it.
Traditional vi is derived from the 4BSD source and includes support for modern operating systems, 8-bit input, multi-byte character encodings like UTF-8, and features demanded by POSIX.2. It contains few additions beyond this, so it is of interest for those who look for a small but well-defined vi implementation close to that of most commercial Unix systems. It also has some features to cope with primitive terminals or slow connections.
The Universal Text Recognizer and Converter (Utrac) is a commandline tool and a C library that recognizes the encoding of an input file (UTF-8, ISO-8859-1, CP437, etc.) and its end-of-line type (CR, LF, or CRLF). It features automatic recognition (depending on the file and on the system's locale, reliable in most cases), assistance for verification or manual recognition, and conversion to another charset and/or end-of-line type.