Decide whether alt text is needed
If an image communicates product appearance, color, fit, detail, packaging, a chart, or instructions, describe the useful information. If it is purely decorative or repeats adjacent content without adding meaning, an empty alt attribute can be more accessible than redundant narration.
Linked images may need alt text that communicates the link’s purpose. Do not begin every description with “image of”; assistive technology already announces that it is an image.
Describe the visible difference
Name the product and the feature that makes this image distinct: “navy linen shirt, rear view showing box pleat” is more useful than “shirt product image.” Keep it concise and factual. Include color, angle, material, scale, or context only when visible and relevant.
Avoid SKU dumps, promotional claims, filenames, and repeated keyword variations. Never invent materials or accessibility claims that are not supported by the image or product data.
Use practical patterns
- Main product: “White ceramic pour-over coffee maker with walnut handle.”
- Detail: “Close-up of the removable stainless-steel filter.”
- Lifestyle: “Two-seat green sofa in a bright living room, shown for scale.”
- Size chart: summarize the relevant dimensions in nearby HTML as well as alt text.
Each image should describe its own contribution instead of copying the same sentence across a gallery.
Audit at catalog scale
Start with missing alt attributes, then find generic, duplicated, excessively long, and filename-like values. Prioritize best sellers and products receiving image-search traffic. When generating suggestions at scale, preview samples by product type and keep merchant approval in the workflow.
Check the full image experience
Alt text cannot compensate for oversized files, poor contrast, text embedded only in images, or broken galleries. Review dimensions, modern formats, lazy loading, responsive sources, zoom controls, captions, and mobile layout together.
Refiner can surface missing image context as part of a broader Shopify store-health scan, alongside metadata, content, links, and storefront issues.
Frequently asked questions
Does alt text improve Shopify SEO?
Descriptive alt text helps search systems understand images and supports accessibility. It is one useful signal, not a shortcut to rankings.
How long should alt text be?
Use the shortest description that conveys the image’s purpose and relevant detail. Clear and specific is more important than hitting a character count.
Can I generate alt text with AI?
Yes, but suggestions should be grounded in verified product facts and reviewed for accuracy, duplication, unsupported claims, and accessibility.