Altograph — Alt Text & SEO Autopilot

Altograph 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.

External services

This plugin connects to the Altograph API to generate alt text and metadata. It is required for the plugin’s core features.

• What is sent and when:
  • Alt text: when you upload an image (with automation on), run the backfill action, the plugin sends the image URL and filename to the Altograph API.
  • Meta descriptions: when you save a post or page (with automation on), the plugin sends the post title and post content.
  • Usage counting: a non-identifying site ID (a hash of your site URL) accompanies each request.
• Where it goes: the Altograph API (default https://api.thereallyusefulappcompany.com), which uses Anthropic as an AI subprocessor to generate the text.
• Service terms and privacy:
  • Altograph Terms: https://thereallyusefulappcompany.com/altograph/terms
  • Altograph Privacy Policy: https://thereallyusefulappcompany.com/altograph/privacy
  • Anthropic Privacy Policy: https://www.anthropic.com/legal/privacy

No data is sent until you enable automation, click the backfill button, or save a post while automation is enabled.