BlueGriffon - An HTML editor based on Mozilla rendering engine.
Pinegrow Web Editor - A professional visual editor for Bootstrap 4 and 3, Foundation, responsive design, HTML, and CSS. Convert HTML to WordPress themes.
Webflow - Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.
Aptana Studio - The world’s most powerful open-source web development IDE just got better. Rebuilt from the ground-up. It's now much faster, customizable and includes new features to help you be more productive.
Website X5 - Create your own website! It's Easy, it's Complete and Professional
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.