Vega-Lite is a high-level visualization grammar. It provides a concise JSON syntax for supporting rapid generation of visualizations to support analysis. Vega-Lite specifications can be compiled to Vega specifications.
Vega-Lite specifications describe visualizations as mappings from data to properties of graphical marks (e.g., points or bars). It automatically produces visualization components including axes, legends, and scales. It then determines properties of these components based on a set of carefully designed rules. This approach allows Vega-Lite specifications to be succinct and expressive, but also provide user control. As Vega-Lite is designed for analysis, it supports data transformations such as aggregation, binning, filtering, sorting, and visual transformations including stacking and faceting.
This is a Vega-Lite specification to create a bar chart that shows the average temperature in Seattle for each month.
- Award winning research paper and video of our OpenVis Conf talk on the design of Vega-Lite
- JSON schema specification for Vega-Lite (latest)
- Ask questions about Vega-Lite in the Vega Discussion Group / Mailing List
- Fork our Vega-Lite Block
- The website and documentation for Vega-Lite v1 is at https://vega.github.io/vega-lite-v1/.
The development of Vega-Lite is led by Kanit “Ham” Wongsuphasawat, Dominik Moritz, Arvind Satyanarayan, and Jeffrey Heer of the University Washington Interactive Data Lab. Please see the contributors page for the full list of contributors.