Deneb: Declarative Visualization in Power BI

Deneb is a custom visual for Microsoft Power BI, which allows creators to use the declarative JSON syntax of the Vega or Vega-Lite languages to build their own bespoke data visualizations, without having to learn web development. This is similar to the approaches used for creating R and Python visuals in Power BI, with the following additional benefits:

• No additional dependencies on local libraries or gateways for your end-users when publishing reports - Visuals will render in any Power BI client.
• Specifications are rendered directly inside Power BI rather than being delegated to another location (typically resulting in faster render times for end-users).
• Built for the web, meaning that it's possible to integrate with Power BI's interactivity features, with some additional setup.

By becoming familiar with the Vega-Lite and Vega languages, and learning to "think visually", you can greatly expand your visual options within Power BI. You can visit the main website at https://deneb-viz.github.io to learn how to get started. The site also covers the Power-BI specific side of things including how you can develop your visuals to potentially leverage visual canvas integration capabilities, such as tooltips, context menus and cross-filtering other visuals.