
Zotero
FreemiumZotero is a free, open-source reference manager that helps you collect, organise, cite and share research sources and PDFs.
#Education
/** @no-ai */
Sites and apps made by people, where AI is not the product: games, toys, maps, learning sites and tools. Ordinary search, game opponents and the odd optional extra are fine.
400 websites
61 apps

Zotero is a free, open-source reference manager that helps you collect, organise, cite and share research sources and PDFs.
#Education

Open Library is a free online library catalogue from the Internet Archive where you can find books, track your reading and borrow ebooks.
#Education

GeoGebra is a free maths platform with graphing, geometry, 3D and scientific calculators plus classroom tools for teachers and students.
#Education

Connected Papers is an online tool that builds a visual graph of academic papers related to one you enter, with 5 free graphs a month.
#Education

Anki is a free flashcard app that uses spaced repetition to help you remember facts, words and formulas, with free sync across devices.
#Education

Monkeytype is a free, open source typing test where you measure and improve your typing speed and accuracy with many modes and themes.
#Education

The Pudding is a free online publication of interactive visual essays that explain culture, music, language and society with data.
#Education

Stellarium Web is a free online planetarium that shows a realistic map of the night sky for your location, with stars, planets and constellations.
#Education

Sporcle is a free trivia website with user made quizzes on almost every topic, from world capitals to song lyrics.
#Education

Six Degrees of Wikipedia is a free tool that finds the shortest chain of links between any two Wikipedia articles.
#Education

Seterra is a free geography quiz site with hundreds of map games where you click to find countries, capitals, flags, rivers and more.
#Education

Nerdle is a free daily maths puzzle where you guess the hidden calculation in six tries, with coloured tiles showing which numbers and symbols are right.
#Education

earth.nullschool.net is a free interactive globe that animates current wind, weather, ocean currents and air pollution worldwide from forecast data.
#Education

Bouncy Balls is a free classroom noise meter where balls on screen bounce higher the louder the room gets, helping teachers keep noise down.
#Education

100,000 Stars is a free interactive 3D map of our stellar neighbourhood that lets you fly through over 100,000 nearby stars in your browser.
#Education

Wikitrivia is a free browser game that asks you to place famous events, inventions and people from Wikipedia in the right order on a timeline.
#Education

Parable of the Polygons is a free playable story by Vi Hart and Nicky Case that shows how small personal biases can lead to a divided society.
#Education

Orb.Farm is a free browser sandbox that lets you build a tiny aquatic ecosystem with sand, water, algae, daphnia and fish, then watch it live.
#Education

freeCodeCamp is a nonprofit coding school that teaches web development, Python and more through free interactive lessons and verified certifications.
#Education

Baby Map is a free neal.fun world map that flashes a country every time a baby is born there, with a live tally of births by country.
#Education

Desmos is a free online math toolkit with a graphing calculator, scientific, matrix, geometry and 3D calculators, used in classrooms and on tests like the SAT.
#Education

Scroll from the ocean surface to the bottom of the Mariana Trench and meet the strange creatures living at every depth.
#Education

A website that holds every possible page of text, so you can search any sentence and find the book where it already exists.
#Education

A 3D globe that shows where your town sat on Earth's shifting continents, from 750 million years ago to today.
#Education