# github/accessibilityjs

Client side accessibility error scanner.

Repository: https://github.com/github/accessibilityjs
Canonical: https://ross.abutalabs.com/products/accessibilityjs
Language: JavaScript
License: MIT
License Family: permissive
Topics: accessibility
Archived: true
Last push: 2020-08-03T15:47:33+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3359, "days_push": 2221, "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 2165, forks 42 (observed 2026-08-28T04:06:21.252826+00:00)

## What it is
A client-side JavaScript library that scans the DOM for common accessibility errors such as missing alt attributes, unlabeled inputs, and buttons without labels. It reports offending elements through a callback so developers can highlight and explain them in the browser.

## Use cases
- scan a web page for missing alt attributes on images
- find inputs and buttons without accessible labels
- highlight inaccessible elements with red borders during development
- detect ARIA attributes missing required properties
- audit links missing labels or roles in the browser

## When to choose
- you want a lightweight, dependency-free in-browser accessibility check
- you want to surface a11y errors visually to developers in dev or staff mode
- you need quick detection of missing labels, alt text, and ARIA attributes

## When to avoid
- you need a comprehensive WCAG audit with detailed reports
- you need server-side or CI-based accessibility testing
- you need automated axe-core-style rule coverage beyond the seven checks it provides

## Facets
- artifact type: library
- maturity: maintenance
- function: accessibility, developer-tools, testing
- domain: accessibility, web-development, frontend, developer-tools
- platform: browser
- tags: a11y, client-side-scanner, dom-audit, nodejs

## Member repositories
- github/accessibilityjs (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:21.252826+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 2026-08-30T02:49:59.842679+00:00, confidence not recorded.
  - readme: https://github.com/github/accessibilityjs (fetched 2026-08-28T04:06:21.252826+00:00, sha dc2ae3ed297c)
  - registry_npm: https://registry.npmjs.org/accessibilityjs (fetched 2026-08-29T10:30:04.883534+00:00, sha 0b85c2e3ebde)
- Data as of 2026-08-30T08:39:29.467469+00:00.