Best Open Source Data Visualization in 2026
Tools for creating interactive charts, graphs, dashboards, and visual representations of complex datasets.
The most popular pick this year is Draw.io with 5,328 GitHub stars, but all 2 options below are worth considering depending on your needs.
2 open source data visualization — ranked by GitHub stars. Browse all
Draw.io
draw.io is a JavaScript, client-side editor for general diagramming.
Miro
ExcaliDash
A self hosted dashboard and organizer for Excalidraw with live collaboration.
MiroHow we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted data visualization →