For larger graphs -- 10K nodes, 100K nodes, ... --- we built http://github.com/graphistry/pygraphistry, which leverages GPU client+cloud acceleration. We're happy to share API keys with folks doing fun things.

There's a REST endpoint and a Pandas (Python/Jupyter) convenience library, so should be quick to use even if the data is in a database. Our customers are primarily doing stuff like security incident investigations over Splunk event logs, for example.

For anyone interested in bigger datasets, just send a note to info@graphistry.com .