Visualization hub · 2026

See your data and your knowledge

Every visualization directory on this site in one place: charts, dashboards and time series tools for data, and graph, knowledge graph and ontology tools for connected knowledge.

17Directories

12Featured tools

4Areas

Data visualization

Data & Knowledge Visualization ToolsThirteen charting libraries, no-code dashboard platforms and map and network-graph tools compared, from D3.js and Chart.js to Grafana and Datawrapper.Visualization Tools for Time Series DataPlotly, Matplotlib, Seaborn, Grafana and Dash for exploring and monitoring time series.

Knowledge & graph visualization

Knowledge Graphs & Graph TechnologiesThe hub for knowledge graphs, graph databases, semantic graphs, query languages and graph neural networks.Knowledge Graph PlatformsKnowledge graph platforms, graph databases and semantic AI vendors.Graph Data PlatformsGraph databases, analytics engines and query frameworks for connected data.Graph Intelligence PlatformsGraph databases, knowledge graphs and decision intelligence with built-in exploration.Graph Database Management SystemsNeo4j, ArangoDB, Amazon Neptune, TigerGraph and other graph databases.RDF Graph Databases & Semantic GraphsSemantic graph and RDF platforms for linked data.OntologiesW3C standards, editors, reasoners and registries behind the semantic layer of knowledge graphs.Graph Query LanguagesCypher, Gremlin, SPARQL, GQL and other languages for querying graphs.

Process & concept visualization

Value Stream Mapping ToolsDiagramming tools for mapping and improving the flow of work.Computer Algorithms & Algorithm AnimationResources on algorithms, including sorting-algorithm animations.

Dashboards & monitoring

Analytics & Business Intelligence PlatformsBusiness intelligence platforms for dashboards, reports and self-service analytics.Digital Analytics SolutionsDashboards and journey views for user behaviour across web and mobile.Observability PlatformsPlatforms that visualise metrics, logs and traces for running systems.

Featured tools

Open and commercial tools worth knowing, with the official sites. Opens in a new tab.

D3.js ↗Low-level JavaScript library for custom, data-driven graphics.Plotly ↗Interactive charts for Python, R and JavaScript.Chart.js ↗Simple, popular open-source JavaScript charts.Matplotlib ↗The foundational plotting library for Python.Datawrapper ↗Fast, publication-ready charts and maps for journalists and teams.Kepler.gl ↗Open-source tool for large-scale geospatial data visualization.Apache Superset ↗Open-source business intelligence and dashboard platform.Grafana ↗Dashboards for metrics, logs and traces from many data sources.Gephi ↗Desktop application for exploring and analysing large networks.Cytoscape.js ↗JavaScript library for graph and network visualization in web apps.Sigma.js ↗JavaScript library for rendering and interacting with large graphs.Neo4j Bloom (Enterprise Studio) ↗Neo4j's tool for visually exploring graph data.

Choosing a tool

A starting point by what you need to show.

Charts for a report or web page	Chart.js, Plotly, Datawrapper or D3.js
Fully custom or interactive graphics	D3.js or a charting library with a rich API
Business dashboards for non-technical users	BI platforms such as Power BI, Looker or Apache Superset
Metrics, logs and traces from running systems	Grafana or an observability platform
Time series exploration in Python	Plotly, Matplotlib or Seaborn
Connected data and relationships	A graph database plus Gephi, Cytoscape.js, Sigma.js or Neo4j's visual tools
Maps and geospatial data	Kepler.gl or a mapping library

Frequently asked questions

Quick answers.

What is data visualization?

Data visualization turns data into charts, maps and dashboards so patterns, trends and outliers are easier to see than in tables of numbers.

What is knowledge visualization?

Knowledge visualization shows how concepts and entities relate, usually as graphs of nodes and edges. It is used for knowledge graphs, ontologies, network analysis and explaining how information connects.

How do I pick a visualization tool?

Start from the audience and the data. Business users usually want a dashboard platform, developers may prefer a library, and connected data is best explored with graph visualization tools.

Do I need a graph database to visualize a knowledge graph?

Not always, but graph databases and triple stores store the relationships natively, and many come with visual exploration tools. Libraries like Cytoscape.js and Sigma.js can also draw graphs from any source.

Where are the detailed directories?

This page links to the in-depth directories on this site: data visualization tools, time series visualization, BI platforms, and the graph and knowledge graph directories.