Search & Research
Answer engines and tools for finding, reading and citing sources.
Perplexity
perplexity.ai
Answer engine that cites its sources
NotebookLM
notebooklm.google.com
Turn your documents into summaries, Q&A and audio overviews
Consensus
consensus.app
Answers drawn from peer-reviewed research
Elicit
elicit.com
Research assistant that finds and summarises papers
Scite
scite.ai
See whether papers support or contrast a claim
SciSpace
scispace.com
Read, explain and search scientific literature
Semantic Scholar
semanticscholar.org
Free AI-powered search across academic papers
Undermind
undermind.ai
Deep literature search that reads papers for you
STORM
storm.genie.stanford.edu
Stanford's tool for Wikipedia-style research reports
Exa
exa.ai
Search engine and API built for AI applications
Kagi Assistant
kagi.com
Ad-free search with built-in AI assistants
You.com
you.com
AI search and research agents for work
Andi
andisearch.com
Ad-free conversational search with privacy
Morphic
morphic.sh
Open-source answer engine with generative UI
Liner
liner.com
Research copilot with reliable source citations
Felo
felo.ai
Multilingual AI search with mind maps and slides
ResearchRabbit
researchrabbit.ai
Map citation networks and discover related papers
Connected Papers
connectedpapers.com
Visual graphs of related academic papers
Litmaps
litmaps.com
Literature maps that update as new papers appear
Keenious
keenious.com
Find research relevant to the document you are writing
Scholarcy
scholarcy.com
Summary flashcards for research papers
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Questions
What are the best search & research AI tools?
Popular choices include Perplexity, NotebookLM, Consensus, Elicit, Scite. The full list has 21 tools.
Are there free search & research AI tools?
Yes. 19 of the 21 tools in this category are free, freemium or open source.