XEmacs is a highly customizable open source text editor and application development system. It is protected under the GNU Public License and related to other versions of Emacs, in particular GNU Emacs. Its emphasis is on modern graphical user interface support and an open software development model, similar to Linux. XEmacs has an active development community numbering in the hundreds, and runs on Windows 95 and NT, Linux and nearly every other version of Unix in existence. Support for XEmacs has been supplied by Sun Microsystems, University of Illinois, Lucid, ETL/Electrotechnical Laboratory, Amdahl Corporation, BeOpen, and others, as well as the unpaid time of a great number of individual developers.
gedit is the official text editor of the GNOME desktop environment.
While aiming at simplicity and ease of use, gedit is a powerful general purpose text editor.
Currently it features:
1.Full support for internationalized text (UTF-8) 2.Configurable syntax highlighting for various languages (C, C++, Java, HTML, XML, Python, Perl and many others) 3.Undo/Redo 4.Editing files from remote locations 5.File reverting 6.Print and print preview support 7.Clipboard support (cut/copy/paste) 9.8.Search and replace 10.Go to specific line 11.Auto indentation 12.Text wrapping 13.Line numbers 14.Right margin 15.Current line highlighting 16.Bracket matching 17.Backup files 18.Configurable fonts and colors 19.A complete online user manual
gedit features also a flexible plugin system which can be used to dynamically add new advanced features to gedit itself. See the plugins page for more info on the existing plugins.
jEdit is a text editor for programmers, available under the GNU General Public License version 2.0. It is written in Java and runs on any operating system with Java support, including Windows, Linux, Mac OS X, and BSD.jEdit development was started in 1998.The founding author was Slava Pestov, who left the project in 2006, handing development to the free software community.