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.
Jupyter - Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.
Easy Data Transform - Transform your data without programming.