If you're familiar with Python, try the Jupyter notebook (jupyter.org) - very useful for quick visualizations while also allowing you to quickly transform the data when necessary. The big advantage is your interactive 'repl' session is persisted as well as editable so you can resume anytime.
You can use any one of a number of visualization libraries such as matplotlib, bokeh, and more. Here's a quick start for an idea of the code needed: http://nbviewer.jupyter.org/github/bokeh/bokeh-notebooks/blo...