ImgTheory - AI-generated alt text that fixes your SEO & accessibility
Hey Fellow IndieHackers! 👋
A few months ago I was doing an SEO audit for a friend's site.
Good content. Solid backlinks. Clean technical setup.
Rankings were still underwhelming.
Spent hours digging. Finally found it — 40% of images had no alt text or just the filename. That was it. That was the leak.
My friend then spent 3 hours manually writing alt text for 200+ product images.
Copy. Describe. Paste. Repeat. For three hours straight.
And I knew — somewhere on the internet, someone else was doing the exact same thing, right now, for no good reason.
I couldn't believe something so small was costing so much traffic. That frustration is why I built ImgTheory.
Search engines can't see images. They rely entirely on alt text to understand what's on your page. Yet most sites ship with missing attributes, generic filenames like IMG_4923.jpg, or one-word placeholders that tell crawlers nothing.
The result: lost rankings, missed traffic, and WCAG failures — all for a problem that's fully automatable.
✨ What ImgTheory does
Scans any webpage, extracts every image, scores existing alt text for quality, and generates AI-powered replacements — context-aware, SEO-friendly, always under 125 characters.
🔍 Key features
→ URL scan — crawl any page, extract all images + existing alt text
→ AI generation — SEO-optimised suggestions under 125 characters
→ Issue detection — flags missing, filename-only, and weak alt attributes
→ Bulk processing — scan hundreds of images in seconds
→ Project dashboard — organise scans by site, track credit usage
→ WCAG 2.1 ready — accessibility for screen-reader users out of the box
🎯 Built for
→ SEO specialists reclaiming lost ranking signals
→ Web developers automating alt text for large sites
→ E-commerce owners optimising product images at scale
→ Content creators saving hours of manual work
→ Agencies managing multiple client projects from one dashboard
🛠️ How it works
1️⃣ Sign up — 200 free credits, no card needed
2️⃣ Add your website URL
3️⃣ Scan — ImgTheory reviews every image and its existing alt text
4️⃣ Review — see exactly what's missing or weak
5️⃣ Apply — copy AI-generated alt text straight into your site
6️⃣ Track — re-scan after changes to measure improvement
👉 Try it free → https://www.imgtheory.com
Reading every comment today — questions, feedback, and honest opinions all welcome. 🙌
