Open Knowledge Maps

Map a research topic as a visual overview of scientific knowledge

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Screenshot of Open Knowledge Maps, Map a research topic as a visual overview of scientific knowledge

What is Open Knowledge Maps?

Open Knowledge Maps is an academic research tool. A nonprofit, AI-assisted scientific search engine that turns a topic query into a clustered visual map of research outputs. It searches BASE (400M+ outputs, 400+ languages) and PubMed, filters by date, type and metadata quality, and claims no hallucinated results, since maps are built from metadata alone.

Open Knowledge Maps is a nonprofit search engine for scientific literature that returns a visual map instead of a ranked list. You enter a topic, choose a source (PubMed for the life sciences or BASE for all disciplines), and the platform groups matching outputs into labelled clusters so the main concepts of a field become visible at a glance. From a cluster you can move to the underlying resources and decide what deserves a closer read. The coverage claim is large: more than 400 million outputs across 400+ languages drawn from over 11,000 sources via BASE, with PubMed handling biomedical queries. Maps can include 25 output types beyond journal articles, among them datasets, software, images, theses and conference objects. Search can be filtered by date range, relevance or recency, by document type and by language, and a metadata quality switch requires an abstract of at least 300 characters for higher map quality. The project is explicit that it does not generate text and does not hallucinate: results are built only from the underlying metadata, which matters when a map is going into a literature review or a grant application. It is aimed at students starting a thesis, researchers scoping an unfamiliar field, librarians teaching search skills, and anyone who needs a fast structural picture of a topic before committing to a reading list. Positioning is where Open Knowledge Maps differs from general AI research assistants. It is open source in spirit, charitable and funded through supporting memberships from universities and libraries, with custom services that let institutions embed its discovery components in their own systems. The trade off is scope of ambition: it maps and points, and leaves summarising and deep analysis to other tools. Alternatives include citation graph tools and conversational literature assistants, which go deeper on individual papers but rarely offer this cluster-level visual entry point.

How do you use Open Knowledge Maps?

  1. 1Go to the homepage and enter your research topic
    Type a query into the topic field on the homepage. Boolean operators work: the site's own sample queries include a combined search such as climate change AND impact.
  2. 2Pick a source: PubMed or BASE
    Choose PubMed for life sciences coverage or BASE for all disciplines. BASE is the wider index and is the default path for most topics.
  3. 3Set date range, sorting and resource types
    Refine the search with all time, last month, last year or a custom range, sort by most relevant or most recent, and tick the output types you want in the map.
  4. 4Choose metadata quality and generate the map
    Select high metadata quality to require abstracts of at least 300 characters, or low quality for wider recall, then run the search to build the knowledge map.
  5. 5Read the map, cluster by cluster
    Open clusters to see the concepts they group and the research outputs behind them, then follow the outputs that matter for your work.
  6. 6Learn about the organisation and membership
    Read the about page for the mission and principles, or the supporting membership page if your institution wants to fund or embed the platform.

Pros and cons

Pros

  • Visual clusters give a structural overview of a field faster than scrolling a ranked result listAI
  • Searches over 400 million outputs from more than 11,000 sources through BASE, with PubMed for life sciencesAI
  • Maps are built from metadata only, so the platform can credibly claim no hallucinated resultsAI
  • Filters for date range, 25 output types, language and metadata quality give useful control over map qualityAI
  • Nonprofit and openly funded, with institutional supporting memberships and custom embedding optionsAI

Cons

  • Quality depends on abstracts: low metadata quality mode can reduce map quality significantlyAI
  • Only two underlying sources (BASE and PubMed), so coverage outside those indexes is not addressedAI
  • Cluster maps show relationships but do not summarise or critique individual papersAI
  • Interface requires a modern browser and offers no native mobile or desktop appsAI
  • Pricing for institutional use is not stated publicly, so buyers must contact the organisationAI

How much does Open Knowledge Maps cost?

Integrations

Custom Services let organisations embed Open Knowledge Maps discovery components in their own systems; live case studies are linked from the supporting membership page. Direct connectors for third party tools are not listed.

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Features

Knowledge maps built from your query, with PubMed and BASE as sources, 25 output types including datasets, software, theses and images, date and relevance sorting, language and resource type filters, and a metadata quality switch that requires abstracts of at least 300 characters. The platform states results are based only on underlying metadata, with no hallucinations.

Learn more

Frequently asked questions about Open Knowledge Maps

  • How do you use Open Knowledge Maps?
    The walkthrough on this page covers 6 steps: 1. Go to the homepage and enter your research topic 2. Pick a source: PubMed or BASE 3. Set date range, sorting and resource types 4. Choose metadata quality and generate the map 5. Read the map, cluster by cluster 6. Learn about the organisation and membership.
  • What platforms does Open Knowledge Maps support?
    Open Knowledge Maps is available on Web App.
  • What does Open Knowledge Maps integrate with?
    Custom Services let organisations embed Open Knowledge Maps discovery components in their own systems; live case studies are linked from the supporting membership page. Direct connectors for third party tools are not listed.
  • What are the limitations of Open Knowledge Maps?
    Quality depends on abstracts: low metadata quality mode can reduce map quality significantly. Only two underlying sources (BASE and PubMed), so coverage outside those indexes is not addressed. Cluster maps show relationships but do not summarise or critique individual papers.

Status

StatusActive
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Added10/21/2026

Platforms

Web App

Pricing

Free