Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Assemble - The static site generator for Node.js, Grunt.js and Yeoman
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Metalsmith - An extremely simple, pluggable static site generator.
Atom - At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it.
Wintersmith - Flexible, minimalistic, multi-platform static site generator built on top of node.js