JASP - JASP, a low fat alternative to SPSS, a delicious alternative to R.
Modern CSV - A CSV editor/viewer
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
Tabula - Tabula is a tool for liberating data tables locked inside PDF files. Extract tables from PDFs.
PSPP - PSPP is a free software application for analysis of sampled data.
Talend - Talend Cloud delivers a single, open platform for data integration across cloud and on-premises environments. Put more data to work for your business faster with Talend.