# Install pa11y with npm

Pa11y is your automated accessibility testing pal. Version 9.1.1 via npm; verified 2026-02-26.

## Install

```sh
sudo av install npm:pa11y
```

Additional install commands:

### Portable and language managers

- npm (100%):

```sh
npm install -g pa11y
```

  Evidence: local npm package metadata

## Package facts

- **Package key:** npm:pa11y
- **Package manager:** npm
- **Package manager page:** <https://www.npmjs.com/package/pa11y>
- **Version:** 9.1.1
- **Source summary:** Pa11y is your automated accessibility testing pal
- **Homepage:** <https://github.com/pa11y/pa11y>
- **Repository:** <https://github.com/pa11y/pa11y>
- **Upstream docs:** <https://github.com/pa11y/pa11y>
- **License:** LGPL-3.0-only
- **Source archive:** <https://registry.npmjs.org/pa11y/-/pa11y-9.1.1.tgz>
- **Issue tracker:** <https://github.com/pa11y/pa11y/issues>
- **Published:** 2026-02-26T14:46:16.643Z
- **Last updated:** 2026-02-26T14:46:16.643Z
- **Generated:** 2026-07-08T07:18:31+00:00

## Executables

- pa11y (cli)
- pa11y (alias)

## Dependencies

- @pa11y/html_codesniffer
- axe-core
- bfj
- commander
- envinfo
- kleur
- mustache
- node.extend
- puppeteer
- semver

## Build dependencies

- c8
- eslint
- eslint-config-pa11y
- mocha
- proclaim
- quibble
- sinon

## Install behavior

- Post-install hook: not defined
- Bottle: not available

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 9.1.1
- Package-manager updated: 2026-02-26
- Local data: ok
- Upstream repository: https://github.com/pa11y/pa11y
- info: No cached GitHub release or tag data was available.

## Security Notes

No matching local secret-handling manifest was found for pa11y. Nucleus package metadata is still published here so future coverage has a stable package URL.


## Source Database Details

- **Source Database:** npm registry
- **Dist Tags:** Latest: 9.1.1
- **Version Count:** 107
- **Maintainers:** rowanmanning, hollsk, glynnphillips, joseluisbolos, dotcode, joey.ciechanowicz, danyalaytekin, aarongoldenthal, jpw, pa11y-bot, andrewmee
- **Author:** Team Pa11y
- **Publisher:** GitHub Actions
- **Engines:** Node: >=20
- **Integrity:** sha512-kHuEgMcoH7YZjcf/G/GEFi2XELsLOv5R+ctaus4EDlLaTU+Cd9GjPbHc/wsKpl87Rmk3lHL2eJA+mZ0XXd0Eew==
- **Shasum:** 8f4cb2dce049c0f866492a974bc2b58b362180c5
- **Unpacked Size:** 104,702
- **File Count:** 0
- **Created At:** 2013-03-06T12:52:10.703Z
- **Latest Published At:** 2026-02-26T14:46:16.643Z
- **Modified At:** 2026-02-26T14:46:17.142Z


## Related links

- [Web development packages](https://www.automicvault.com/pkg/web-dev-tools/) - Matched curated package taxonomy and local package facts.
- [pa11y-ci](https://www.automicvault.com/pkg/npm/pa11y-ci/) - Package names and metadata indicate a similar tool family. Shared terms: a11y, accessibility, analysis, aria, audit.
- [lighthouse](https://www.automicvault.com/pkg/npm/lighthouse/) - Both packages touch the same language runtime or ecosystem. Shared terms: automated, axe, axe-core, core, node.
- [mcp-accessibility-scanner](https://www.automicvault.com/pkg/npm/mcp-accessibility-scanner/) - Local package facts share a topical domain. Shared terms: a11y, accessibility, automated, axe, axe-core.

## Sources

- Nucleus package database
- package-page enrichment
- package version freshness
- package relationship graph
- cross-ecosystem install command graph