Description
Automate the generation of high-quality, descriptive image alt texts across your website to boost accessibility, SEO, and user experience. This n8n workflow leverages GPT-4o with vision capabilities to audit and enhance your HTML image tags—perfect for inclusive web design and compliance with accessibility standards.
Ideal for bloggers, SEO specialists, and dev teams looking to scale accessibility audits with AI.
🔹 How It Works:
✅ Set Page URL – Define which web page or blog post to scan
✅ HTML Scraper – Downloads HTML content of the page
✅ Image Tag Extractor – Extracts <img> tags and their alt attributes
✅ Alt Text Audit – Filters out images with missing or low-quality alt text (< 50 characters)
✅ AI-Powered Description – GPT-4o (Vision) generates descriptive and accessibility-compliant alt texts
✅ Google Sheets Sync – Logs image URLs, current alt text, and AI-suggested alt text for review or update
🔍 It Automates:
🖼️ Image Alt Detection – Audits all images on a page and identifies weak or missing alt text
🧠 AI-Generated Descriptions – GPT-4o analyzes each image and writes concise, meaningful alt text
📄 Results Logging – Outputs to a Google Sheet for transparency, editing, and approval
⚙️ Custom Filtering – Easily filter by image size, domain, tag types, or alt length
📈 SEO & Accessibility Upgrade – Improve Google indexing and WCAG compliance
💡 Why Choose This Workflow?
🌐 Better Web Accessibility – Comply with WCAG guidelines and improve UX for screen readers
🚀 Boost SEO Ranking – Well-written alt texts help search engines understand visual content
🤖 Vision AI at Work – Leverage GPT-4o's image understanding to generate contextually rich descriptions
📊 Fully Auditable – Store and review changes in Google Sheets before final implementation
🧩 Flexible & Scalable – Works across blogs, landing pages, e-commerce catalogs, or entire domains
👤 Who Is This For?
✔️ Bloggers optimizing their site’s usability
✔️ SEO professionals focused on accessibility metrics
✔️ Product and dev teams running web audits
✔️ Marketing teams improving web performance and compliance
✔️ Content creators managing large visual libraries
🔗 Integrations:
🔗 n8n – Core automation orchestrator
🔗 Google Sheets – For storing and reviewing audit results
🔗 OpenAI GPT-4o (Vision) – Generates new alt text from image content
🚀 Get Started Today!
Use AI to make your website more accessible, inclusive, and optimized for SEO—without manual content rewrites. Whether you manage a blog, a product catalog, or an enterprise site, this workflow lets you run powerful image alt audits and improvements at scale.
