Just committed some new changes to explain.depesz.com.
The less visible is that, in case of plans generated by plain EXPLAIN (without ANALYZE), site will no longer show “actual time=.. rows= loops=", which was clearly bogus info.
The more visible is that if you add query to your plan, you can also have it reformatted to (hopefully) nicer format, shown in “REFORMATTED QUERY" tab. For example, take a look at this example.
I picked this library for the very simple reason – it's in Perl, just like explain.depesz.com site, which made using it a breeze.