I'd also highly recommend Blazer https://github.com/ankane/blazer if you are into the Ruby on Rails world. It's super solid, and it's been an indispensable tool integrated to all my projects.
Only came across blazer yesterday, on an awesome-BI list on Github, but I do really dig it.
Love how simple it is, the auto-configuration of charts etc. Even just playing around with the demo there was a lot to like: https://blazer.dokkuapp.com/queries/new
I'd also highly recommend Blazer https://github.com/ankane/blazer if you are into the Ruby on Rails world. It's super solid, and it's been an indispensable tool integrated to all my projects.