The most ambitious editor I found was Andrea Giammarchi’s experimental Overbyte JavaScript editor and debugger.

Scratchpad is never going to replace your favorite text editor, but it just might make it a bit easier to test long scripts in the browser. For more info on everything Scratchpad can do, head over ...

Back in 2012, Mozilla launched Thimble, an online code editor for teaching the basics of HTML, CSS and JavaScript. Over time, though, things got pretty quiet around the project as other browser ...

HTML Editor Phase 5 is a program for creating HTML documents under Windows. In addition to HTML, the syntax highlighting supports PHP, ASP, JavaScript, Perl, SQL, Java, C++, Modula-2, Object-Pascal, ...

In my comparisons of JavaScript editors and JavaScript IDEs, my top recommendations often include Sublime Text (as an editor) and Visual Studio Code (as either an editor or an IDE).