Indeed, not a specific field for it. That’s why people use the body of the post (the part where one would write an essay if they did a text post) for it.

Here’s what I see when I tap the above image (with the alt text I added) in Voyager:

And here’s the MarkDown I wrote to accomplish that:

![There is no client support for alt text field in photos.](https://lemmy.world/pictrs/image/4f6ac967-d88d-44b3-888a-44205b1697c5.png)

Here’s what I see when I tap the above image (with the alt text I added) in Voyager:

![Shows image and alt text.](https://lemmy.world/pictrs/image/4d332a61-c0cc-43fe-a5be-36bb18a69854.png)