Bluefish is a powerful editor for experienced web designers and programmers. Bluefish supports many programming and markup languages, but it focuses on editing dynamic and interactive websites. It has MDI support, multiple encodings support, and a customizable syntax highlighting based on Perl. Read more Killer App hot
Quanta Plus is designed for quick web development and is rapidly becoming a mature editor with a number of great features. Quanta is based on KDE so this means it is network transparent from any dialog or project. It can use not only FTP but other KDE KIO slaves from file dialogs or in project settings. Read more hot
Aephea is a text-based authoring tool for HTML. It enforces well-formedness with a simpler and stricter TeX-like syntax and provides useful extensions and abstractions with facilities for adding new ones.
Asbru Web Content Editor
(commercial) A cross-browser/cross-platform Web content editor. It enables anybody to create, edit, and post Web site content through a WYSIWYG editor with CSS style sheet support and drag and drop editing (to be used as a replacement for HTML form textarea tags).
An HTML editor for UNIX. It features editing of multiple files, search and replace, support for many of the standard HTML tags, dialog boxes for setting font size and color, inserting tables and images.
BlueGriffon is a WYSIWYG content editor for the World Wide Web. Powered by Gecko, the rendering engine of Firefox 4, it's a modern and robust solution to edit Web pages in conformance to the latest Web Standards. Read more
CuteMarkEd is a MarkDown editor with live HTML previews, maths expressions, and source code and syntax highlighting of MarkDown documents.
A web page editor like dreamweaver, that will be developed in Lazarus (Object Pascal).
erwin is a really simple html editor. It has support for html tages, drag'n'drop and source highlighting.
FCKosc puts a WYSIWYG HTML editor into OsCommerce's admin in product descriptions, newsletters, and on the main page. FCKosc requires no changes to OSC's database, requires few changes to files, and is easily upgradable as new versions are released.
HTMLButcher is an advanced HTML slicing tool. It can slice images, creating HTML layouts with or without tables, preserving the layout while allowing data and images to be individually changed. Besides common slicing tasks, HTMLButcher features unlimited nested table generation (tables inside tables), reuse of layout mask, per-area image format and transparency selection, in-place preview with file sizes, an extremelly precise and easy tool for sizing, aligning, and repetition-aligning of slices, and much more.
KHTMLScrub removes unwanted tags and attributes from html files. Once the options are set you can apply the options to as many htmls as you want, and KHTMLScrub will also give you a preview of how the altered document looks, before you save them.
KImageMapEditor is a tool for Linux/KDE that allows you to edit image maps of HTML files.
It can be fully integrated with Quanta since it is based on KPart technology.
A simple imagemap editor for KDE 3. Kmap can: create circle, rectangular, polygonal and ellipsoid maps with different colors, copy, move, delete, change colors for several maps at once, add, delete and move points of polygons etc.
KompoZer is a complete Web Authoring System that combines web file management and easy-to-use WYSIWYG (What You See Is What You Get) web page editing. Read more
LaTeX2HTML is a convertor written in Perl that converts LATEX documents to HTML. This way e.g. scientific papers - primarily typeset for printing - can be put on the Web for online viewing.
Mapedit is an imagemap-editing program. Mapedit adds client-side imagemaps to web pages, simply by opening the page, selecting the image, and drawing rectangles, polygons and other shapes. There is no easier way to make an imagemap, and zoom support allows easy detail work on large images.
Mozilla Skywriter (formerly Bespin) is a Mozilla Labs experiment on how to build an extensible Web code editor using HTML 5 technology.
Nvu (pronounced N-view, for a "new view") is a complete Web Authoring System that combines web file management and easy-to-use WYSIWYG (What You See Is What You Get) web page editing. Nvu is designed to be extremely easy to use, making it ideal for non-technical computer users who want to create an attractive, professional-looking web site without needing to know HTML or web coding. Read more
Peacock is an HTML Editor for Gnome. Its is distributed under the GNU GPL License. Using the latest Gnome technologies like Bonobo, GtkHTML it hopes to provide the Web Developers a congenial environment for making Websites. Still in its nascent stages it support basic WYSIWYG HTML Editing and advanced editing operations.
Screem is a web development environment. It's purpose is to increase productivity when constructing a site, by providing quick access to commonly used features. While it is written for use with the GNOME desktop environment in mind it does not specifically require you to be running it, just have the libraries installed. Read more
An ongoing effort to write a useful and feature filled HTML editor for Linux and other environments tcl/TK supports.
TkImgMap is a freeware dedicated to the creation of image maps that can be included in a Web page. It has a deliberate Windows 95 look & feel, but it's vanilla Tcl/Tk and can be run (almost) anywhere.
(commercial) TweakStyle is a new generation code editor thought for web design and front-end development.
An Italian text and HTML editor written in Tcl/Tk. It includes some interesting features.
Xinha (pronounced like the Warrior Princess) stands for "Xinha is not htmlarea". It began as a stop-gap fork of the InteractiveTools.Com htmlArea WYSIWYG editor, but due to popular demand it has spawned into Xinha, a generally better version of htmlArea version 3, with a much cooler name.