sayld

Sayld is an open-source framework for creating interactive data-driven stories and visualizations. It provides a declarative language to describe scenes, data bindings, and user interactions, enabling creators to sequence narratives with embedded charts, maps, and media.

The project began with an international collaboration of developers and data journalists in the late 2020s, with an initial public release in 2022. It is maintained by a community-driven repository with contributions from individuals and organizations.

It uses a sceneDescription language, supports real-time data binding, timeline-based sequencing, reusable components, and a plugin API. It runs in modern web browsers and Node.js environments; the core is written in TypeScript. Visual rendering relies on SVG/WebGL technology. The project is released under the MIT License.

Sayld has been adopted by educators, researchers, and media organizations to craft explorable data narratives. Proponents highlight accessibility, portability, and collaboration tools; critics point to performance with large datasets and a learning curve for the scene language.

Related topics include data storytelling, interactive visualization, and open-source software.

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