Here are some free WYSIWYG HTML Editor software and online tools. You can edit the output content and HTML source code and preview it.

Many of these editors combine the best of both worlds, allowing you to hand edit your code if you wish and work with the WYSIWYG editor when it's more convenient. Best WYSIWYG HTML Editor? Read More ...

CoffeeCup HTML Editor has a friendly way about it. Tabs along thetop and sides of the window put the three main views (Code Editor,Visual Editor, and Preview) right at your fingertips.

It's a code and text editor in the same vein as Coda. Very similar to HyperEdit is Taco HTML Edit ($24.99), which has a component library that can add amazing features to an HTML document.

Scintilla-based editors range from tools focused on single languages or platform to more general code editors. While single-function tools are useful, especially if you’re working with languages ...

In addition to executing code embedded in HTML, it's also possible to add a code editor directly into an HTML page using the py-repl tag so that you can input code and execute it, as shown below.

Visual Studio Code 1.65, the latest release of Microsoft’s popular source code editor, brings improvements to editor history navigation as well as enhancements to debugging and audio cues.