A flexible and extendable library for data exploration, data analytics, data authoring and knowledge sharing.

Tap into all of your data

  • Connect multiple private or public data sources & browse one cumulative knowledge graph
  • Through the metaphactory platform, Ontodia supports the most prominent graph databases, including Stardog, blazegraph, Amazon Neptune, etc. » Full list

Interact smoothly with data

  • Upload unfamiliar data or ontologies and start exploring right away
  • Interactively build diagrams and perform deep-dive analyses
  • Drag'n'drop data bits into diagrams
  • Visual data and ontology authoring

Turn data into knowledge

  • Ask better questions and get precise, contextually-rich answers
  • Share knowledge with collaborators
  • Make better business decisions by highlighting patterns and showing relations


Ontodia is tightly integrated into metaphactory's search and exploration framework and is being delivered to metaphacts customers as part of metaphactory.

Ontodia is seamlessly coupled with metaphactory and has truly become an integral platform component. Just as any other metaphactory platform component, it can be configured and applied to platform templates. This is enabled by its rich API and highly flexible visual templating mechanism for vertexes and edges.

Diagrams are managed as native assets, which means that users can save and open them anytime.

One of the main advantages of the Ontodia integration into metaphactory is that this data browser can be used out-of-the-box, i.e., on any dataset and with no prior configuration.


Knowledge Graph Exploration

End-users easily navigate through large data sets, become aware of the data structure, data volume and the relevant knowledge they conceal, and quickly find answers to their questions. This is achieved through Ontodia's support for:

  • queries over several data sources and navigation across multiple datasets,
  • incremental exploration (i.e., expanding nodes to see connected entities in the knowledge graph),
  • answering the question of "how many" by counting the number of connected entities, classes, individuals in classes, etc.,
  • search across all types of data: classes, individuals, connections, etc.

Knowledge Graph Exploration with Ontodia

Data Analytics

Ontodia's ability to hide the underlying data complexity and engage users with visual interaction enables various real-life analysis scenarios, specifically:

  • visualize data in various formats and gain insights into meaningful facts,
  • perform drill-down analyses,
  • find paths between entities and match patterns,
  • perform "what-if" analyses,
  • group similar concepts into group-nodes for easier perception and quantitative analysis,
  • define visual templates for types of nodes and connections,
  • support for "property graph" model and "collapsible paths" that simplify the representation of knowledge,
  • share findings with colleagues.
Data Analytics with Ontodia

Visual Data Authoring

End-users can augment the knowledge graph and its ontologies by leveraging Ontodia's most recent features for visual knowledge graph authoring, specifically:

  • adding entities to and removing them from the dataset,
  • modifying properties of entities,
  • adding or removing connections between entities,
  • customizing nodes to embed rich content, e.g., embedded videos,
  • authoring basic ontologies,
  • on-the-fly validation of changes against the ontology constrains.
Visual Data Authoring with Ontodia

Data Model Documentation and Knowledge Distribution

With Ontodia, end-users can easily document data and ontologies by creating diagrams around it, and share their knowledge base with colleagues. To this end, Ontodia allows for:

  • creating diagrams and posting them as illustrations,
  • automatically producing example diagrams from the published RDF,
  • embedding diagrams into documentation pages,
  • configuring how diagrams are displayed to readers (e.g., read-only).

Data Model Documentation & Knowledge Distribution with Ontodia
Highly customizable look and feel
Large graphs supported while adding unprecedented interactivity
Multiple data sources navigated seamlessly in one graph
Visual data & ontology authoring
Finding paths between two objects


Try the demo system below and experience Ontodia first-hand!

Get in touch

If you have questions or would like to learn more about metaphactory and Ontodia, please get in touch with us using our contact form »