# Vega-Lite <a href="https://vega.github.io/vega-lite/"><img align="right" src="https://github.com/vega/logos/blob/master/assets/VL_Color@64.png?raw=true" height="38"></img></a>

[![npm version](https://img.shields.io/npm/v/vega-lite.svg)](https://www.npmjs.com/package/vega-lite) [![Build Status](https://github.com/vega/vega-lite/workflows/Test/badge.svg)](https://github.com/vega/vega-lite/actions) [![codecov](https://codecov.io/gh/vega/vega-lite/branch/main/graph/badge.svg)](https://codecov.io/gh/vega/vega-lite) [![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=rounded)](https://github.com/prettier/prettier) [![JSDevlivr](https://data.jsdelivr.com/v1/package/npm/vega-lite/badge?style=rounded)](https://www.jsdelivr.com/package/npm/vega-lite)

![Teaser](site/static/teaser.png)

[Vega-Lite](https://vega.github.io/vega-lite/) provides a higher-level grammar for visual analysis that generates complete [Vega](https://vega.github.io/) specifications.

You can find more details, [documentation](https://vega.github.io/vega-lite/docs/), [examples](https://vega.github.io/vega-lite/examples/), [usage instructions](https://vega.github.io/vega-lite/usage/embed.html), and [tutorials](https://vega.github.io/vega-lite/tutorials/getting_started.html) on the [Vega-Lite website](https://vega.github.io/vega-lite/).

Try using Vega-Lite in the online [Vega Editor](https://vega.github.io/editor/#/examples/vega-lite/bar).

Contributions are also welcome. Please see [CONTRIBUTING.md](CONTRIBUTING.md) for contribution and development guidelines and our [Code of Conduct](https://vega.github.io/vega/about/code-of-conduct/).

Read about future plans in [our roadmap](https://github.com/vega/roadmap/projects/).

## Team

The development of Vega-Lite is led by the alumni and members of the [University of Washington Interactive Data Lab](https://idl.cs.washington.edu) (UW IDL), including [Kanit "Ham" Wongsuphasawat](https://twitter.com/kanitw) (now at Databricks), [Dominik Moritz](https://twitter.com/domoritz) (now at CMU and Apple), [Arvind Satyanarayan](https://twitter.com/arvindsatya1) (now at MIT), and [Jeffrey Heer](https://twitter.com/jeffrey_heer) (UW IDL).

Vega-Lite gets significant contributions from its community. Please see the [contributors page](https://github.com/vega/vega-lite/graphs/contributors) for the full list of contributors.

## Citing Vega-Lite

```bib
@article{2017-vega-lite,
  doi = {10.1109/tvcg.2016.2599030},
  year = {2017},
  author = {Arvind Satyanarayan and Dominik Moritz and Kanit Wongsuphasawat and Jeffrey Heer},
  title = {Vega-Lite: A Grammar of Interactive Graphics},
  journal = {{IEEE} Transactions on Visualization \& Computer Graphics (Proc. InfoVis)},
  url = {http://idl.cs.washington.edu/papers/vega-lite},
}
```
