Is there any wysiwyg (maybe in js) latex editor for use in html? Simple use for users who do not know latex syntax.
you can try the codec editor , which is a useful formula editor for web bases.
Take a look at the LaTeX online editor ( http://latexonlineeditor.net/ ). It works in a browser and has a WYSIWYG (M) / rich-text editor interface for creating pdf documents of any type.