Citrus Search helps users find an overview of relevant articles in a research field.
Open Knowledge Maps
Open Knowledge Maps creates visual overviews of research topics to help users find publications and key concepts.
About Open Knowledge Maps
Open Knowledge Maps is a web tool that turns a search on a research topic into a visual map, grouping results into clusters so users can see themes and key concepts in the literature. Search draws on the BASE index, which the site says covers more than 400 million outputs in over 400 languages from more than 11,000 sources and 25 output types, including publications, datasets, software and images. A beta feature maps a research topic with AI, and organizations can embed Open Knowledge Maps components in their own discovery systems through Custom Services. The platform is run by a charitable non-profit organization and is funded through supporting members and funders.
Key features
- Maps a research topic as a visual overview grouped into thematic clusters
- Searches more than 400 million research outputs in 400+ languages
- Draws on over 11,000 sources through the BASE index
- Covers 25 output types, including publications, datasets, software and images
- Beta AI tool for mapping a research topic
- Custom Services embed Open Knowledge Maps components into an organization's own discovery systems
Best for: Researchers, students and librarians who want a visual overview of a topic and its key concepts before working through individual papers.
Good for
- Run by a charitable non-profit based on open science principles
- Broad coverage of languages, sources and output types through BASE
- States that results are based only on underlying metadata rather than generated content
Watch out for
- The AI-based topic mapping feature is labeled beta
- No pricing information is given on the homepage
Open Knowledge Maps at a glance
- Website
- openknowledgemaps.org
- Category
- Research & Data › Academic Papers
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Open Knowledge Maps alternatives
Tools and sites you could use instead, ranked by how closely they match.
Zooniverse supports people-powered research projects, as described by its homepage.
OpenAIRE helps users find and share linked research, including scholarly records, software and research data.
ChinaRxiv provides English-access research papers from ChinaXiv and other supported sources, including machine-translated papers.
Hugging Face Daily Papers sends trending AI research papers to subscribers by email each day.
Scinapse offers research discovery services focused on finding R&D trends and experts.
Popular in Academic Papers
Well-known listings from the same topic.
PubMedpubmed.ncbi.nlm.nih.govGoogle Scholarscholar.google.comNelitineliti.comDBpediadbpedia.orgDataonedataone.orgZoterozotero.org
Open Knowledge Maps FAQ
What sources does the search cover?
Results come from more than 11,000 sources via BASE, covering over 400 million outputs in more than 400 languages.
What kinds of research outputs can I find?
The site covers 25 output types, including publications, datasets, software and images.
Can organizations integrate Open Knowledge Maps into their own systems?
Yes. Custom Services let organizations embed Open Knowledge Maps components in their own discovery systems.
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