# Vega-Altair

Declarative Python library for building charts from a Vega-Lite specification.


Source: https://findsoftware.frbit.cloud/altair/
Last reviewed: 2026-11-04
Listed since: 2026-11-04

## Record

### Links

- home: https://altair-viz.github.io/
- repository: https://github.com/vega/altair
- docs: https://altair-viz.github.io/
- forum: https://stackoverflow.com/questions/tagged/altair

### Identity

- status: active
- maintainer: Vega-Altair Developers
- maintainerType: community
- parent: unknown
- firstRelease: 2016
- hqCountry: unknown

### Kind

- category: graphics
- hosting: not applicable
- language: python
- runtime: python
- runtimeMin: python 3.11
- basedOn: unknown

### Content

- contentStore: not applicable
- databases: not applicable
- adminUi: not applicable
- headlessApi: not applicable
- templating: not applicable
- i18n: not applicable

### Rendering and deploy

- runsAs: not applicable
- renderingModes: not applicable
- installMethod: pip

### License

- licenseModel: open-source
- license: BSD-3-Clause

### Releases

- currentMajor: 6
- latestReleaseDate: 2026-09-15

### Adoption

- githubStargazers: 10511
- packagistDownloads: not applicable
- npmWeeklyDownloads: not applicable
- contributors: 185
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: 16451
- dependentPackages: 344

### Sources

- urls: https://altair-viz.github.io/ (read 2026-11-04)
- urls: https://api.github.com/repos/vega/altair (read 2026-11-04)
- urls: https://altair-viz.github.io/ (read 2026-11-04)
- firstRelease: https://pypi.org/pypi/altair/json (read 2026-11-04)
- maintainer: https://github.com/vega/altair/blob/main/LICENSE (read 2026-11-04)
- category: https://altair-viz.github.io/ (read 2026-11-04)
- language: https://github.com/vega/altair (read 2026-11-04)
- runtime: https://github.com/vega/altair/blob/v6.3.0/pyproject.toml (read 2026-11-04)
- runtimeMin: https://github.com/vega/altair/blob/v6.3.0/pyproject.toml (read 2026-11-04)
- installMethod: https://altair-viz.github.io/getting_started/installation.html (read 2026-11-04)
- license: https://api.github.com/repos/vega/altair (read 2026-11-04)
- license: https://github.com/vega/altair/blob/main/LICENSE (read 2026-11-04)
- licenseModel: https://github.com/vega/altair/blob/main/LICENSE (read 2026-11-04)
- currentMajor: https://github.com/vega/altair/releases/tag/v6.3.0 (read 2026-11-04)
- latestReleaseDate: https://github.com/vega/altair/releases/tag/v6.3.0 (read 2026-11-04)
- githubStargazers: https://api.github.com/repos/vega/altair (read 2026-11-04)
- contributors: https://api.github.com/repos/vega/altair/contributors (read 2026-11-04)
- dependentPackages: https://packages.ecosyste.ms/api/v1/registries/pypi.org/packages/altair (read 2026-11-04)
- dependentRepos: https://packages.ecosyste.ms/api/v1/registries/pypi.org/packages/altair (read 2026-11-04)

## Notes

Vega-Altair is a declarative visualization library for Python, built on the Vega-Lite grammar. The [installation guide](https://altair-viz.github.io/getting_started/installation.html) installs it with pip.

Saving a chart to an HTML file creates a page that loads Vega, Vega-Lite and vegaEmbed, and the chart renders when a browser opens that page. The project is maintained by Vega-Altair Developers.

## Worth knowing

The homepage states that the project is not affiliated with Altair Engineering, Inc., a separate company with a similar name.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0