# GoogleChrome/accessibility-developer-tools

This is a library of accessibility-related testing and utility code.

Repository: https://github.com/GoogleChrome/accessibility-developer-tools
Canonical: https://ross.abutalabs.com/products/accessibility-developer-tools
Language: JavaScript
License: Apache-2.0
License Family: permissive
Archived: true
Last push: 2022-10-04T17:53:27+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4800, "days_push": 1429, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2305, forks 364 (observed 2026-08-28T04:06:35.738638+00:00)

## What it is
A JavaScript library from Google Chrome providing accessibility-related testing and utility code. Its core is an accessibility audit engine with rules for common WCAG/ARIA problems, plus utilities like contrast ratio calculation and accessible name computation.

## Use cases
- run automated accessibility audits on web pages
- check color contrast ratios and get color suggestions
- validate ARIA attributes and states in HTML
- compute accessible names for DOM elements
- integrate accessibility checks into automated test suites

## When to choose
- you need programmatic accessibility rule checks in JavaScript
- you want to embed an a11y audit into browser automation or testing frameworks
- you need ARIA/contrast utility functions

## When to avoid
- you need actively maintained tooling with modern WCAG 2.2 rules (project's last release was 2022)
- you want a full-featured linter like axe-core or Lighthouse
- you need non-browser accessibility testing

## Facets
- artifact type: library
- maturity: maintenance
- function: testing, accessibility
- domain: accessibility, testing, web-development, developer-tools
- platform: browser
- tags: wcag, aria, audit-rules, contrast-ratio, accessible-name-calculation, a11y, nodejs, javascript

## Member repositories
- GoogleChrome/accessibility-developer-tools (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:35.738638+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:39:41.550356+00:00, confidence not recorded.
  - readme: https://github.com/GoogleChrome/accessibility-developer-tools (fetched 2026-08-28T04:06:35.738638+00:00, sha 972a6401d503)
  - registry_npm: https://registry.npmjs.org/accessibility-developer-tools (fetched 2026-08-29T10:20:22.714589+00:00, sha f45b538736ae)
- Data as of 2026-08-30T08:39:29.467469+00:00.