Re: Best open-source ontology/vocabulary visualization tool?

I tend to use graphviz aka dot

On 2015-01 -19, at 21:11, Harry Halpin <hhalpin@ibiblio.org> wrote:

> Quick question - what is the best open-source best (or a web service)
> to visualize, preferably as a tree, an existing RDF(S) vocabulary or
> OWL ontology?
> 
> There seems to be lots of papers, but little I can find in terms of
> functional tools!
> 
>  yours,
>      harry
> 
>