Product image alt generation based on product metafield

Topic summary

PatrickH is seeking an app to automatically generate product image alt text using product metafields, specifically a color metafield populated via ChatGPT-4 Vision API. The goal is to improve Google image search rankings by including color information in alt attributes.

Current situation:

  • Multiple apps exist that generate alt text from standard fields (title, brand, etc.)
  • All products have the color metafield populated
  • PatrickH wants to incorporate this custom metafield data into image alt text

Resolution:
PatrickH found a solution by directly appending the metafield value to alt text in the code rather than using an app.

Note: samdavidson mentioned launching a new app that auto-generates alt text based on product fields, but it doesn’t yet support metafields.

Summarized with AI on November 9. AI used: claude-sonnet-4-5-20250929.

Hi Everybody,

I’m looking for an app that can generate Product image alt texts based on product metafields.

I’ve found multiple that can use title, brand, etc. But we have some extra values in a metafield that I would like to incorporate.

Anybody know any apps that support this?

Thanks in advance!

Hi Patrick, I’d like to learn more about this use case. Do all your products have data in the metafields or only some?

Hi @samdavidson !

Yeah sure. We’ve added a metafield with the color of the product. So all our products indeed have that metafield filled (thanks to the ChatGPT 4 vision API). The end goal is to have our product images rank on broader search terms in Google that include the color.

Just figured out a solution though! Instead of actually adding the metafield value to the alt of the images I’m just going to append it to the alt value in the code.

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@PatrickH That’s an elegant approach. I was curious because I published a new app on the app store this morning to auto generate ALT text based on product fields. It doesn’t do metafields yet though.

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