# Autoprefixer

PostCSS plugin that parses CSS and adds vendor prefixes to rules, using browser support data from Can I Use.


Source: https://findsoftware.frbit.cloud/autoprefixer/
Last reviewed: 2026-10-28
Listed since: 2026-10-28

## Record

### Links

- home: https://autoprefixer.github.io/
- repository: https://github.com/postcss/autoprefixer
- docs: https://github.com/postcss/autoprefixer/blob/main/README.md
- x: https://twitter.com/autoprefixer

### Identity

- status: active
- maintainer: Andrey Sitnik
- maintainerType: individual
- parent: unknown
- firstRelease: 2013
- hqCountry: unknown

### Kind

- category: build-tool
- hosting: not applicable
- language: javascript
- runtime: node
- runtimeMin: node 10
- basedOn: postcss

### Content

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

### Rendering and deploy

- runsAs: local
- renderingModes: not applicable
- installMethod: npm install postcss postcss-cli autoprefixer

### License

- licenseModel: open-source
- license: MIT

### Releases

- currentMajor: 10
- latestReleaseDate: 2026-10-26

### Adoption

- githubStargazers: 22199
- packagistDownloads: not applicable
- npmWeeklyDownloads: 75611237
- contributors: 187
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: 3254905
- dependentPackages: 90847

### Sources

- urls: https://autoprefixer.github.io/ (read 2026-10-28)
- urls: https://api.github.com/repos/postcss/autoprefixer (read 2026-10-28)
- urls: https://raw.githubusercontent.com/postcss/autoprefixer/main/README.md (read 2026-10-28)
- maintainer: https://raw.githubusercontent.com/postcss/autoprefixer/main/LICENSE (read 2026-10-28)
- maintainerType: https://raw.githubusercontent.com/postcss/autoprefixer/main/LICENSE (read 2026-10-28)
- language: https://api.github.com/repos/postcss/autoprefixer (read 2026-10-28)
- runtime: https://raw.githubusercontent.com/postcss/autoprefixer/10.6.2/package.json (read 2026-10-28)
- runtimeMin: https://raw.githubusercontent.com/postcss/autoprefixer/10.6.2/package.json (read 2026-10-28)
- category: https://raw.githubusercontent.com/postcss/autoprefixer/main/README.md (read 2026-10-28)
- runsAs: https://raw.githubusercontent.com/postcss/autoprefixer/main/README.md (read 2026-10-28)
- installMethod: https://raw.githubusercontent.com/postcss/autoprefixer/main/README.md (read 2026-10-28)
- license: https://registry.npmjs.org/autoprefixer/latest (read 2026-10-28)
- licenseModel: https://raw.githubusercontent.com/postcss/autoprefixer/main/LICENSE (read 2026-10-28)
- firstRelease: https://api.github.com/repos/postcss/autoprefixer/releases (read 2026-10-28)
- currentMajor: https://api.github.com/repos/postcss/autoprefixer/releases (read 2026-10-28)
- latestReleaseDate: https://api.github.com/repos/postcss/autoprefixer/releases (read 2026-10-28)
- githubStargazers: https://api.github.com/repos/postcss/autoprefixer (read 2026-10-28)
- contributors: https://api.github.com/repos/postcss/autoprefixer/contributors (read 2026-10-28)
- npmWeeklyDownloads: https://api.npmjs.org/downloads/range/2026-09-28:2026-10-04/autoprefixer (read 2026-10-28)
- dependentPackages: https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/autoprefixer (read 2026-10-28)
- dependentRepos: https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/autoprefixer (read 2026-10-28)
- basedOn: https://github.com/postcss/autoprefixer/blob/main/README.md (read 2026-10-28)

## Notes

Autoprefixer is a PostCSS plugin that parses CSS and adds vendor prefixes to its rules, using browser support data from Can I Use. Authors write unprefixed CSS, and the plugin adds the prefixes that current browser popularity and property support call for.

The README's usage sections cover Gulp, webpack through postcss-loader, the postcss-cli command line and other build tools, and the project says it belongs in an assets build step. A standalone build for the browser, or for a runtime other than Node.js, is shipped alongside the npm package.

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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