The idea of a visual editor that replaces code tends to dominate, but I really want better tools to augment it. Firebug and all the descendants of Firebug like

The idea of a visual editor that replaces code tends to dominate, but I really want better tools to augment it. Firebug and all the descendants of Firebug like Chrome's inspector are a good start, but those tools help you view and make minor edits to your markup tree rather than build it. I think the problem is that HTML and CSS are so fiddly and so big. Seemingly okay things don't work properly. You end up with an editor that only works on a subset, and then you're back to replacing rather than augmenting.