Data Visualization GitHub Repositories (2026) · Open Source Tools

Aggregate results from bioinformatics analyses across many samples into a single report.

Capture and visualize the data that matters in your life

Vitessce is a visual integration tool for exploration of spatial single-cell experiments.

Open-Source Software, Tutorials, and Research on Data-Centric AI 🤖

Bring data to life with SVG, Canvas and HTML. :bar_chart::chart_with_upwards_trend::tada:

Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 155+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI. If Radzen Blazor is useful to you, a ⭐ on GitHub helps other Blazor developers find it.

Data Apps & Dashboards for Python. No JavaScript Required.

Open-source JavaScript charting library behind Plotly and Dash

Visually explore, understand, and present your data.

Vizro is a low-code toolkit for building high-quality data visualization apps.

VTable is not just a high-performance multidimensional data analysis table, but also a grid artist that creates art between rows and columns.

C# KQL query engine with flexible I/O layers and visualization

JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser.

Open Source Business Intelligence Tool

Python toolkit, MCP server, and agent skills for reproducible, auditable clickstream and event log analytics. Helps AI agents, data scientists and analysts build, validate, and cross-check product analytics, quantitative UX, customer journeys, graph-based user flows, behavioral segmentation, A/B tests, process mining models, Markov chain simulation

A tiny TypeScript visualization grammar for responsive, accessible, server-rendered charts—powered by granular D3 primitives.

🎨 Toolkit for generating publication-quality plots for Cell, Nature and Science journals

Knowage is the professional open source suite for modern business analytics over traditional sources and big data systems.

Track your Data Science. Skore's open-source Python library accelerates ML model development with automated evaluation reports, smart methodological guidance, and comprehensive cross-validation analysis.

Declarative YAML around SQL for dbt-native dashboards: easy for agents to write, easy for humans to audit.