AI Tools for Research

Free R Shiny app for forward and backward citation chasing that uses the Lens.org article index.

Searches the Semantic Scholar database. Allows you to create and explore a visual map of connected papers based on any single search result. Free tier allows limited number of maps per month.

Free literature mapper based on a seed paper, or pair of papers to explore connecting literature. Very transparent in explaining how its Graph, Literature Connecter, and Paper Discovery tools work, and allows power users to edit the SQL rules used to determine the algorithm for ranking papers.

Literature navigator and recommender with a free tier. Allows you to search and generates a map of relevant articles based on any one paper. Search results are drawn from CrossRef, OpenAlex, and Semantic Scholar (>200 million items). Allows both citation-based search and semantic similarity searching.

An AI-based visual interface for exploring scientific knowledge. Creates a topical overview of your search term based on text similarity of the 100 most relevant papers.

Free literature search tool that, starting from some seed papers, suggests scientific publications through citations/references. Retrieves literature meta-data and citation information from OpenCitations and CrossRef.

Always free, non-profit citation chasing literature mapping and visualization tool. Searches a very large literature corpus covering >90% of academic databases, plus grey literature. Start with uploaded citations, or link to Zotero citation manager. Clear FAQ and help documentation.