Herramientas

Scraping

Scrapy
An open source and collaborative framework for extracting the data you need from websites. In a fast, simple, yet extensible way. https://scrapy.org/

Mapas

Carto
https://carto.com

QGIS
QGIS is a cross-platform free and open-source desktop geographic information system application that provides data viewing, editing, and analysis.
http://qgis.org/en/site/

Limpieza de datos

Openrefine
OpenRefine, formerly called Google Refine, is a standalone open source desktop application for data cleanup and transformation to other formats, the activity known as data wrangling.
http://openrefine.org/

Cálculo

Libreoffice
LibreOffice is a free and open source office suite, a project of The Document Foundation. It was forked from OpenOffice.org in 2010, which was an open-sourced version of the earlier StarOffice.
https://libreoffice.org

Gnumeric
Gnumeric is a spreadsheet program that is part of the GNOME Free Software Desktop Project. Gnumeric version 1.0 was released on 31 December 2001.
http://gnumeric.org

Editor de código y texto

Atom
Atom is a text editor that's modern, approachable, yet hackable to the core—a tool you can customize to do anything,...
https://atom.io

Otras

Superset
Superset is a data exploration platform designed to be visual, intuitive, and interactive
http://nerds.airbnb.com/

Repositorio de herramientas open source de Airbnb
https://github.com/airbnb

Airbnb Engineering
Plataforma de Airbnb que ofrece herramientas e información para interactuar con sus datos. No ofrece acceso a los datos en sí.
http://nerds.airbnb.com/