Academic Research
Entry points for research: academic search, AI answer engines, data publications, and knowledge archives.
277 curated websites
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Academic Research
17 websites
Internet ArchiveA US non-profit digital library known for the Wayback Machine web archive, with free collections of texts, audio, video, and software.
ZooniverseThe world's largest people-powered research platform — volunteers classify real research data in the browser, from galaxies and penguins to historical manuscripts, with most projects open without registration.
Semantic ScholarA free academic search engine from the nonprofit Ai2, indexing more than 200 million papers with AI-generated TLDR summaries, citation intent and influence labels, plus a free API and datasets.
PerplexityPerplexity is an AI answer engine that responds to questions with direct, source-cited answers instead of a list of links. Core features are free; Pro and Max subscriptions unlock stronger models and higher limits.
Metaso (秘塔AI搜索)A Chinese AI search engine by Shanghai Metaso that answers questions with ad-free, source-cited structured summaries, including academic search and a free Deep Research mode.
Our World in DataA free, non-profit research publication by Oxford University researchers and the charity Global Change Data Lab, with interactive charts and analysis on poverty, climate, health and other global issues, largely reusable under CC BY.
arXivA free, open-access preprint archive hosting over three million scholarly articles across eight subject areas including physics, mathematics and computer science. Reading requires no registration; content is not peer reviewed.
Wolfram|AlphaA computational knowledge engine launched in 2009 by Wolfram Research: instead of returning web links, it computes answers to math, science and factual questions from a curated knowledgebase. Basic queries are free; extras need Pro.
WikipediaA free, multilingual online encyclopedia that anyone can edit, launched in January 2001 and sustained by reader donations to the nonprofit Wikimedia Foundation; as of 2026-09-02 it spans 348 language editions with over 68 million articles.
KaggleGoogle's data science and machine learning competition platform and community, founded by Anthony Goldbloom in 2010 and acquired by Google in 2017, offering competitions, public datasets, cloud notebooks and free courses.
Google ScholarGoogle's free scholarly search engine, launched in 2004, indexing papers, theses, books, preprints, patents and US case law across publishers, with citation tracing, author profiles and venue metrics. Search needs no account.
NotebookLM (now Gemini Notebook)Google's AI research assistant: answers are grounded only in your uploaded sources, with inline citations, and the same material can become Audio Overviews, mind maps, or flashcards. Renamed Gemini Notebook in July 2026.
DeepSeekAI assistant from Hangzhou-based DeepSeek, free to use on web and mobile after sign-up, with DeepThink reasoning and web search; model weights are open-licensed and the API is low-cost.
ConsensusConsensus is an AI academic search engine launched in 2021, synthesizing cited answers from 220M+ peer-reviewed papers with AI summaries, a Consensus Meter, and literature review tools. Freemium.
SciSpaceSciSpace (formerly Typeset) is an AI research assistant that combines a 280M+ paper database with literature review, Chat with PDF, citation-backed AI writing and reference tools, on a freemium subscription model.