allows csv, sqlite, db, git, zip, many many more

This interactive visual tool lets you see how accessible your color palettes are to viewers who are colorblind.

Choosing good colors for your charts is hard. This article tries to make it easier.

a realtime plotting utility for terminal

A topic-centric list of HQ open datasets. Contribute to awesomedata

The (large) data files needed for the Data Science Toolkit project - petewarden

Source files (i.e. datasets) to play around with; useful for learning data science

Goes directly into several O'Reilly data science books

Quantified Self Personal Data Aggregator and Data Analysis - markwk

Many ipynb data analysis examples for toggl, todoist, lastfm, goodreads, and so on and so forth

Shows how to download, aggregate, import, organize data, correlate, unify and more

Incredible CLI Data visualization tool (scatterplot, frequency analysis, ..) perfect for data exploration

Runs on sqlite (perhaps other backends)

:ram: A CLI tool for processing data with functional pipelines - raine

Data science workflow with vim slimux and python

demonstration here -- 40min

datasets, competitions, big data, ...