The Free Evidence Library
Free courses, textbooks, open data, ways to help real scientists, and tools for checking a claim. Hand-picked, written in our own words, and linked straight to the source.
Help me pick
Tell us what you are in the mood for. The AI can only choose from this shelf, so it cannot invent links.
What kind of free is it?
The badge on each card tells you which kind it is.
About this library
The Free Evidence Library collects free science courses, textbooks, open data, projects where anyone can help real scientists, and tools for checking a claim, each described in our own words and linked straight to the source. The badge on every card says what kind of free it is. The claim checker walks you through the questions worth asking about a surprising headline, and the picker can only choose from this shelf. For the habits behind it, read our guides to how to evaluate a claim and what scientific consensus means.