Adding alternative (alt) text

Alt text is a text alternative for images and other media content. The alt text normally is not displayed but can be used by screen readers (and in the Accessibility player). This article describes how to add alt text to your ThingLink content.

See other guidelines for creating accessible content here.

Media editor: background media

The alt text for background images, videos, and 3D models is generated automatically using the scene's title.

To customize the alt text, open your project, click the three dots ("More actions") button in the top right corner and select 'Rename':

Next, check the 'Add alternative text' box and enter your desired alt text:

Media editor: images inside tags

Quick overview: edit tag -> hover over image thumbnail -> click the three dots button -> enter the alt text in the 'Alt text' field -> click Done.

To add an alt text to an image or a 3D model inside a text & media tag, open the tag in editing mode and hover over the image/model thumbnail. Click the three dots (...) button in the upper-left corner of the thumbnail:

This will bring up a new pop-up window. Use the 'Alt text' field to enter the alt text and click Done. You can always update the alt text later.

There is no character limit, but we recommend providing concise descriptions.

Scenario editor: images inside text block

You can change the alt text for images uploaded to a Text block inside a scenario by editing the Text block, switching to Markdown mode, and updating the blue text inside the square brackets for each image:

By default, the alt text is set to the image file name.