Pricing

$5.00 / 1,000 url auditeds

Image Alt-Text Auditor

Audit image alt text on any URL for WCAG 1.1.1 accessibility: missing alt, suspect empty alt, filename-as-alt, overlong alt. Returns pass rate + A-F grade + per-image flags. Use for a11y compliance audits, SEO image checks. Input: url or urls[]. Output: JSON report.

Pricing

$5.00 / 1,000 url auditeds

Rating

0.0

(0)

Developer

Coleton Patton

Actor stats

Bookmarked

Total users

Monthly active users

7 days ago

Last modified

What it catches

Flag	What it means
`missing-alt`	The `alt` attribute is entirely absent — a WCAG hard failure
`empty-alt-suspect`	`alt=""` without `role="presentation"` or `aria-hidden="true"` (often unintentional)
`decorative-should-be-empty`	Image marked decorative but still has alt text
`alt-too-long`	Alt over 150 chars (Lighthouse warning threshold)
`filename-as-alt`	`alt="IMG_1234.jpg"` — useless placeholder

Input

{ "url": "https://example.com" }

Output

{
  "url": "...",
  "grade": "C",
  "passRate": 62.5,
  "totalImages": 24,
  "goodImages": 15,
  "issues": {
    "missingAlt": 3,
    "emptyAltSuspect": 4,
    "decorativeShouldBeEmpty": 0,
    "altTooLong": 1,
    "filenameAsAlt": 1
  },
  "images": [
    {
      "src": "https://example.com/hero.jpg",
      "alt": "Mountain landscape at sunrise",
      "altLength": 31,
      "flags": [],
      "severity": "good"
    }
  ]
}

Use cases

A11y compliance audits — required for EU/UK/Canadian government contracts
Pre-launch QA — catch missing alts before they hit prod
Lead enrichment for a11y consultants — find prospects with failing pages
WCAG monitoring — schedule daily runs across your portfolio

Pricing

Pay-per-result: $0.005/URL. Fetch-only, cheap.

Note

Fetches the raw HTML. For SPAs that render images via JavaScript, pair this with a Playwright-based audit (Color Contrast Auditor or Web Vitals Reporter from the same author).

Author

Built by Peak Post. Part of the Accessibility Audit Suite alongside Color Contrast Auditor.

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