Hey, there! Look at our new WYSIWYG editor.
Documentation

Source

source #

Type: Boolean , Object

Default: true

This setting turn off the source view button.

$R('#content', {
        source: false
});

In source mode, the editor has no code highlighting by default. This can be changed by connecting Codemirror on the page and specifying it in the source settings.

$R('#content', {
    source: {
        codemirror: true
    }
});

You can set Codemirror settings, like this:

$R('#content', {
    source: {
        codemirror: {
            lineNumbers: true
        }
    }
});

showSource #

Type: Boolean

Default: false

Show the source code on load of Redactor.

$R('#content', {
        showSource: true
});