QEmacs (for Quick Emacs) is a very small but powerful editor. It has features that even big editors lack:

• Full screen editor with an Emacs look and feel with all Emacs common features: multi-buffer, multi-window, command mode, universal argument, keyboard macros, config file with C-like syntax, minibuffer with completion and history.

• Can edit files of hundreds of Megabytes without being slow by using a highly optimized internal representation and by mmaping the file.

• Full Unicode support, including multi charset handling (8859-x, UTF8, SJIS, EUC-JP, ...) and bidirectional editing respecting the Unicode bidi algorithm. Arabic and Indic scripts handling (in progress).

• WYSIWYG HTML/XML/CSS2 mode graphical editing. Also supports Lynx like rendering on VT100 terminals.

• WYSIWYG DocBook mode based on XML/CSS2 renderer.

• C mode: coloring with immediate update. Emacs like auto-indent.

• Shell mode: colorized VT100 emulation so that your shell work exactly as you expect. Compile mode with next/prev error.

• Input methods for most languages, including Chinese (input methods come from the Yudit editor).

• Hexadecimal editing mode with insertion and block commands. Unicode hexa editing is also supported.

• Works on any VT100 terminals without termcap. UTF8 VT100 support included with double width glyphs.

• X11 support. Support multiple proportional fonts at the same time (as XEmacs). X Input methods supported. Xft extension supported for anti aliased font display.

• Small! Full version (including HTML/XML/CSS2/DocBook rendering and all charsets): 200KB big. Basic version (without bidir/unicode scripts/input/X11/C/Shell/HTML/Dired): 49KB.

Kakoune is a code editor heavily inspired by Vim, as such most of its commands are similar to Vi's ones, and it shares Vi's "keystrokes as a text editing language" model. Kakoune has a strong focus on interactivity, most commands provide immediate and incremental results, while still being competitive (as in keystroke count) with Vim.

Libconfig is a simple library for manipulating structured configuration files. This file format is more compact and more readable than XML. And unlike XML, it is type-aware, so it is not necessary to do string parsing in application code.

cobib is a command-line based bibliography management tool. It uses a plain-text database, a location-independent library, and features git integration, command-line support, and a curses-based TUI.

catdoc extracts text from MS-Word files, trying to preserve as many special printable characters as possible. It supports everything up to Word-97. Also supported are MS Write documents and RTF files.

catdoc does not preserve complex word formatting, but it can translate some non-ASCII characters into TeX escape codes. It's goal is to extract plain text and allow you to read it and, probably, reformat with TeX, according to TeXnical rules.

This package also provides xls2csv, which extracts data from Excel spreadsheets and outputs it in comma-separated-value format, and catppt, which extracts data from PowerPoint presentations.

UTF8-CPP is a C++ library for handling UTF-8 encoded text in a portable way.

utf8proc is a small C library that provides Unicode normalization, case-folding, and other operations for data in the UTF-8 encoding.

This package provides converters for various bibliography formats (e.g. Bibtex, RIS, etc.) using a common XML intermediate.

Enca (Extremely Naive Charset Analyser) consists of libenca, an encoding detection library, and enca, a command line frontend, integrating libenca and several charset conversion libraries and tools.

UTF8-CPP is a C++ library for handling UTF-8 encoded text in a portable way.

GoAWK is a POSIX-compatible version of AWK that also has a CSV mode for reading and writing CSV and TSV files.

ack is a tool for finding text inside files. It is designed for hackers and programmers by being fast, ignoring VCS directories, letting a user easily specify file types, match highlighting, Perl-Compatible Regular Expressions, and being faster to type than grep.

pfff is a tool for calculating a compact digital fingerprint of a file by sampling randomly from the file instead of reading it in full. Consequently, the computation has a flat performance characteristic, correlated with data variation rather than file size. pfff can be as reliable as existing hashing techniques, with provably negligible risk of collisions.

utf-8-lineseparator provides a tool to efficiently check text files for valid UTF-8 use and to report which line endings they use.

csvdiff is a diff tool to compute changes between two CSV files. It can compare CSV files with a million records in under 2 seconds. It is specifically suited for comparing CSV files dumped from database tables. GNU Diff is orders of magnitude faster for comparing line by line. csvdiff supports

• Selective comparison of fields in a row

• Specifying group of columns as primary-key to uniquely identify a row

• Ignoring columns

• Several output formats including colored git style output or JSON for post-processing

docx2txt is a Perl based command line utility to convert Microsoft Office .docx documents to equivalent text documents. Latest version supports following features during text extraction.

• Character conversions; currency characters are converted to respective names like Euro.

• Capitalisation of text blocks.

• Center and right justification of text fitting in a line of (configurable) 80 columns.

• Horizontal ruler, line breaks, paragraphs separation, tabs.

• Indicating hyperlinked text along with the hyperlink (configurable).

• Handling (bullet, decimal, letter, roman) lists along with (attempt at) indentation.

dos2unix is a tool to convert line breaks in a text file from Unix format to DOS format and vice versa.

pandoc-include extends Pandoc to support:

1. include as raw blocks

2. indent and dedent included contents

3. partial include

4. code include

5. Unix style pathname

6. recursive include

7. Yaml header merging

8. header include

The two programs are useful for generating test data, for inspecting binary files, and for interfacing programs that generate textual output to programs that require binary input and conversely. They can also be useful when it is desired to reformat numbers.

• ascii2binary reads input consisting of ascii or hexadecimal representation numbers separated by whitespace and produces as output the binary equivalents. The type and precision of the binary output is selected using command line flags.

• binary2ascii reads input consisting of binary numbers and converts them to their ascii or hexadecimal representation. Command line flags specify the type and size of the binary numbers and provide control over the format of the output. Unsigned integers may be written out in binary, octal, decimal, or hexadecimal.

  Signed integers may be written out only in binary or decimal. Floating point numbers may be written out only decimal, either in standard or scientific notation. (If you want to examine the binary representation of floating point numbers, just treat the input as a sequence of unsigned characters.)

Miller (mlr) is like awk, sed, cut, join, and sort for data formats such as CSV, TSV, JSON, JSON Lines, and positionally-indexed. It supports format conversion and pretty-printing.

RSyntaxTextArea is a syntax highlighting, code folding text component for Java Swing. It extends JTextComponent so it integrates completely with the standard javax.swing.text package. It is fast and efficient, and can be used in any application that needs to edit or view source code.

Antiword is an application for displaying Microsoft Word documents. It can also convert the document to PostScript or XML. Only documents made by MS Word version 2 and version 6 or later are supported. The name comes from: "The antidote against people who send Microsoft Word files to everybody, because they believe that everybody runs Windows and therefore runs Word".

Oniguruma is a regular expressions library. The special characteristic of this library is that different character encoding for every regular expression object can be specified.

html2text is a command line utility that converts HTML documents into plain text.