Is it possible to suppress all frame titles in beamer?

Question

I would like to know if there is a beamer option to suppress all frame titles.

I suspect not, since this may seem like an odd thing to do. The reason I want to do it is because I have to make two versions of a presentation -- one standard version, and one version with no frame titles, no margins, and possibly larger font. (I will import the second version into Prezi.)

I am using an ifthen boolean to compile one or the other version, so I suppose I could start each frame as follows:

\ifthenelse{\boolean{prezi}}{
\begin{frame}{} % no frame title
}{
\begin{frame}{Here is my frame title}
}

but that seems a bit tedious.

Answer 1

Set the frametitle template to nothing:

\setbeamertemplate{frametitle}{}

A complete example:

\documentclass{beamer}

\setbeamertemplate{frametitle}{}

\begin{document}

\begin{frame}
\frametitle{Test Frame}
test
\end{frame}

\end{document}

Commenting out the line \setbeamertemplate{frametitle}{} you'll get the titles back.