DbVisualizer is a database management and analysis tool for all major databases.
Add the Elasticsearch JDBC driver to DbVisualizer through Tools > Driver Manager:
Create a new driver entry through Driver > Create Driver entry and add the JDBC driver in the files panel through the buttons on the right. Once specify, the driver class and its version should be automatically picked up - one can force the refresh through the Find driver in listed locations button, the second from the bottom on the right hand side:
Once the Elasticsearch driver is in place, create a new connection:
One can use the wizard or add the settings all at once:
Press Connect and the driver version (as that of the cluster) should show up under Connection Message.
The setup is done. DbVisualizer can be used to run queries against Elasticsearch and explore its content: