The principles of image optimization include a lot of different aspects: choosing the right file format, compressing pictures, editing file names, etc. Alt text is one of the crucial aspects: it’s needed to ensure site accessibility (as what is written in alt is what will be shown to visually impaired users or if the image doesn’t load) and it’s very much appreciated by search engines.
The Alt Text app helps Shopify merchants easily add alt texts for all images they have on their online stores. The only thing you have to do is choose a template or create your own one based on predefined elements. The app will take care of the rest—it will automatically apply the template to your images.
The Alt Text app is limited to alt editing functionality and doesn’t provide you with other SEO features. It actually is a part of LoyaltyHarbour’s Image Optimizer app, so if you want a broader range of functions but you like how alt templates work here, go with Image Optimizer. Alt Text alone costs $1.99 per month.