Alt Text for Facebook is a Chrome extension that allows users to view the auto-generated alt-text captions for photos on Facebook. Developed by Alan, this free extension falls under the Browsers category, specifically the Add-ons & Tools subcategory.

Facebook utilizes machine learning technology to automatically generate "secret captions" for every photo uploaded to the platform. However, these captions are not visible to the users. Alt Text for Facebook aims to make these hidden captions accessible to users, providing them with the opportunity to evaluate the accuracy of Facebook's latest AI technology in describing the content of their photos.

It is important to note that this extension is not affiliated with Facebook. It serves as a tool for users to explore and assess the capabilities of Facebook's AI-generated alt-text captions.