SandDance is an open-source data visualization tool that helps users explore and understand their data through unit visualizations. It features smooth transitions and a modular design, making it easy to integrate into custom applications. The project is actively developed on GitHub, inviting community contributions.

Superset is a modern, enterprise-ready business intelligence web application designed for data exploration and visualization. It offers a no-code interface, a powerful SQL editor, and support for various SQL databases, making it a flexible alternative to proprietary BI tools. The platform is highly extensible and built for scalability in cloud environments.

Metabase offers an embedded analytics solution that allows companies to integrate customizable and scalable analytics quickly and efficiently without extensive engineering efforts. It provides features like granular permissions, self-service analytics, and a user-friendly interface, enabling teams to visualize data and create reports seamlessly. With options for low-code implementation and a robust SDK, Metabase helps businesses enhance their customer-facing analytics while maintaining control over their data.

Apache ECharts is a powerful and flexible data visualization library that supports over 20 chart types and customizable components. It features a robust rendering engine capable of processing large datasets in real-time, along with professional data analysis tools and accessibility features. The active open-source community contributes to its continuous development and offers various extensions for enhanced functionality.