Data vis tools

Some data visualisation tools:

Closed source

Tableau Create visualisation with a drag and drop interface. Used by almost everybody.
Looker
Mode analytics SQL editor, UI to create charts, export and share
Periscope “Type SQL, get charts”. Redshift friendly. Very good technical blog. (Eg: Redshift guide and periscope data cache)
Chartio
Qlikview
Gooddata

Free/Open source

Caravel (recently features on HN)
Vega Visualisation grammar
Polestar Lightweight Tableau-style interface for visual analysis, built on Vega-lite