Tool Link Note
ANACONDA Python Environment
Rodeo Python IDE
R 64-bit
RStudio Install R first and then install RStudio; download the free RStudio desktop
KNIME Download the FULL version with all extensions
OpenRefine Data clean
NodeXL Excel add-on (Windows only)
Tableau Public Data visualization (the free version of Tableau)
Gephi Network visualization
Voyant Text analysis and visualization
JSON Editor Online Parse JSON structure
Datawrapper Visualization online (chart + map)
reaper Social media scraping GUI (Facebook, Twitter, Reddit and Youtube)

Hai Liang