There are several tools available for web developer in Linux. Each has their advantage and disadvantage. Most of the editor are WYSIWYG based. Some HTML editor also include text editor. While other are fully based on WYSIWYG. Here are the list of some popular HTMl editor for linux/UNIX.
Bluefish editor multi platform, lightweight editor targed mostly for programmer and webdevelopers. It can also be used a general purpose editor as well with the IDE. Bluefish support many porgramming and markup language, but focusing on creating dynamic and interactive websites. It in an open source development project, released under the GNU GPL LICENCE. Bluefish support many porgramming and markup language, but focusing on creating dynamic and interactive websites. It in an open source development project, released under the GNU GPL LICENCE. Some features of bluefish are multiple file editor, multiple toolbar, external program integration(tidy, weblint, make, javac).
Qanta plus orginally known as Quanta is another popular IDE FOR KDE. IT has WYSIWYG features and also supports editing files over FTP. Quanta support several language PHP support is included by default, other language support can be created with a language description package. HTML XML and CSS SUPPORT are included by default.
Kompozer open source web development tools based on Gecko (layout engine that powers mozilla). Kompozer support file management via ftp, WYSIWYG editor, supports of forms, tables and templates.