Drupal AI Alt Text Generator

Yes. Once enabled, the module hooks into Drupal's media save process so whenever an editor uploads an image to the media library or inside the content editor, AltTextLab generates and populates alt text automatically in the background. Editors see a completed alt text field when the image is saved, ready to review and adjust if needed. No manual trigger is required.

This is particularly useful for larger editorial teams where enforcing consistent alt text entry is difficult — the AI handles it by default, and editors can focus on reviewing rather than writing from scratch.

Yes. The module includes a bulk generation action that scans your existing images and processes all image media entities with an empty Alternative Text field in a single job. Only images with missing alt text are processed by default — existing image descriptions written by editors are left untouched unless you explicitly opt in to regenerating them.

No. The module only fills in alt text where the Alternative Text field is currently empty. If an editor has already entered a description on a media entity, it is left exactly as it is. Regenerating descriptions across media entities that already have descriptive alt text is an opt-in action available in the bulk generation settings, not something that runs automatically.

AltTextLab's Drupal module supports Drupal 10 and Drupal 11. Note that Drupal 7's security support ended in January 2025, and the module does not support Drupal 7 or Drupal 9. If your site is still on an unsupported version, upgrading to Drupal 10 or 11 is the recommended path before installing the module.

Yes, migration backlogs are one of the primary use cases the module is built for. Sites migrating from Drupal 7 or Drupal 9 frequently arrive at Drupal 10 or 11 with thousands of images that have never had alt text. The bulk generation feature processes the entire media library in a single run, making it practical to resolve a years-long backlog in one job rather than tasking editors with writing descriptions manually. The module also integrates cleanly into migration pipelines via the API for teams handling large, programmatic content imports.

Yes. AltTextLab operates at the media entity level — it writes to the Alternative Text field on your image media entities. SEO modules like Metatag work at the page and meta layer and don't interact with image alt attributes directly. The two work in parallel without conflict. In fact, well-populated alt text fields produced by AltTextLab give Metatag and other SEO tools better structured data to work with when generating image-related structured markup and Open Graph image alt text.

Both workflows are supported. The automatic generation on upload handles the vast majority of cases without any editor involvement. For situations where an editor wants to regenerate or review alt text for a specific image, the module surfaces a generate action within the media entity edit form so editors can trigger generation for a single image with one click, review the output, edit if needed, and save.

It stays. AltTextLab writes AI image alt text to Drupal's native media alt text field identically to text entered manually through the media UI. Uninstalling the module does not remove any generated alt text. Every description is written permanently to the Drupal database.