AltoGraph is an
AI alt text generator that writes the metadata you never have time for. When you upload an image, it generates accurate, accessible
alt text by looking at the picture. When you save a post, it can write an SEO
meta description and add
JSON-LD structured data. Turn it on once and it keeps your media and content described as your site grows.
Unlike most tools,
you don't need your own AI API key. The AI runs on the AltoGraph service, so there's nothing to configure. The free plan covers 25 items per month; AltoGraph Pro removes the monthly limit (subject to fair use).
What it does
- Generates descriptive alt text for images from the image itself (better accessibility and image SEO).
- Writes concise, on-topic meta descriptions for posts and pages.
- Adds Article JSON-LD structured data for richer search results.
- Backfills alt text for images that are currently missing it.
- Never overwrites alt text you've written yourself.
Privacy-friendly by design
Automation is
off until you switch it on, and AltoGraph only ever sends what it needs to do the job (see the External Services section below). A non-identifying site ID (a hash of your site URL) is used for usage counting; no personal data is required.