HTML-Kit!

Notepad++ is a free source code editor and Notepad replacement that supports several languages.

A free, open-source Integrated Development Environment for software developers. You get all the tools you need to create professional desktop, enterprise, web, and mobile applications with the Java language, C/C++, and even dynamic languages such as PHP, JavaScript, Groovy, and Ruby. NetBeans IDE is easy to install and use straight out of the box and runs on many platforms including Windows, Linux, Mac OS X and Solaris.The download section conveniently offers prepackaged bundles/installers for each supported programming language containing only required plugins. »

Tool for building websites and applications. Adobe Dreamweaver software is intended for web designers, web developers, and visual designers.

Coda is a fast, clean, and powerful text editor with pixel-perfect preview and a built-in way to open and manage your local and remote files. And a dash of SSH too.

PSPad is a freeware programmers editor in 8 languages for Microsoft Windows operating systems. Some features are highlighted syntax, ftp, projects and so on. Code explorer for Pascal, C/C++, INI, HTML, XML, PHP and more in development, internal web browser with APACHE support. Installation contains templates for HTML, PHP, Pascal, JScript, VBScript, MySQL, MS-Dos, Perl.

Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.

UltraEdit is the ideal text, HTML and HEX editor, and an advanced PHP, Perl, Java and JavaScript editor for programmers. An industry-award winner, UltraEdit supports disk-based 64-bit file handling (standard) on 32-bit Windows platforms (Windows 2000 and later).

SciTE is a SCIntilla based Text Editor. Originally built to demonstrate Scintilla, it has grown to be a generally useful editor with facilities for building and running programs. It is best used for jobs with simple configurations - I use it for building test and demonstration programs as well as SciTE and Scintilla, themselves.

Pinegrow is a desktop app that lets you build responsive websites faster with live multi-page editing, CSS styling and smart components for Bootstrap, Foundation, AngularJS and WordPress, either visually or through code.

jEdit is a mature programmer's text editor with hundreds (counting the time developing plugins) of person-years of development behind it. While jEdit beats many expensive development tools for features and ease of use, it is released as free software with full source code, provided under the terms of the GPL 2.0.