How to Fix Missing Alt Text on Shopify Product Images

Google Image Search drives a surprising amount of eCommerce traffic. But here's the catch: if your product images don't have descriptive alt text, Google can't index them. They're invisible.

Beyond search, alt text is required for accessibility. Screen readers use it to describe images to visually impaired users. It's not just an SEO feature — it's a legal requirement under the ADA and similar accessibility laws.

What is alt text?

Alt text (alternative text) is a short description of an image. It serves two purposes:

1. Search engines: Google Image Search uses alt text to understand what an image shows, so it can rank it for relevant searches.
2. Accessibility: Screen reader software reads alt text aloud to blind and visually impaired users.

Example: A product image of a blue running shoe should have alt text like "Blue Asics running shoe with white sole, men's size 10" — not "shoe.jpg" or blank.

Why your store likely has missing alt text

When you upload product images to Shopify, the alt text field is optional and easy to skip. Most store owners upload dozens of images quickly without adding alt text to any of them. The result: hundreds of images that Google can't index.

Check which images are missing alt text

1. Easiest: Run a RankCart audit — Run a free audit and check the Images section. It shows every image missing alt text, organized by page. Much faster than manual checking.
2. Manual check in Shopify: Go to Products → Select a product → Scroll to Media section. Each image will show if alt text is present or missing.
3. Check multiple pages: Spot-check a few product pages to estimate how many images need alt text across your store.

Step-by-step: How to add alt text in Shopify

Adding alt text to a single product

1. Go to Products → Select the product — From Shopify admin, click Products, then choose the product you want to edit.
2. Scroll to Media — You'll see all uploaded images for this product.
3. Click the image — A modal opens showing the image preview.
4. Click Edit alt text — Or scroll down to the Alt text field.
5. Write descriptive alt text — 100–125 characters, describe what you see: color, product type, key features. Include your target keyword naturally if possible.
6. Click Save — Done. Repeat for each image.

Bulk adding alt text (faster)

If you have hundreds of products, doing one at a time takes forever. Here are faster methods:

1. Use a Shopify bulk edit app — Apps like "Bulk Meta Tags", "Image Alt Text", or "SEO Manager" let you batch-edit alt text. Many can even generate alt text from product titles and tags.
2. Use AI to generate alt text — Paste your product list into ChatGPT: "Generate alt text for these products: [list]. Keep it under 125 characters." Then bulk import the generated alt text into your app.
3. Export and re-import — Export your products as CSV, add alt text in a spreadsheet column, then import back into Shopify using a bulk import tool.

Best practices for writing alt text

• Be descriptive, not keyword-stuffed: "Blue wool winter coat with hood and down filling" beats "coat coat winter blue wool down"
• Keep it under 125 characters: Long alt text gets cut off. Be concise but complete.
• Avoid "image of" or "picture of": Screen readers already know it's an image. Start with the subject: "Stainless steel watch" not "Image of stainless steel watch"
• Include details that matter: Color, size, material, unique features. Someone shopping should understand what they're looking at.
• Use your target keyword naturally: If you sell "merino wool running socks", use that phrase in the alt text if it makes sense. Don't force it.
• Make each image's alt text unique: Duplicate alt text (e.g., the same alt for every product) signals spam to search engines.

Alt text examples by product category

Clothing/Fashion:

• ❌ "Shirt" or "blue shirt"
• ✓ "Men's blue cotton button-down shirt with pocket detail, size M"

Accessories:

• ❌ "Watch"
• ✓ "Rose gold stainless steel watch with leather strap and 12-hour dial"

Home Décor:

• ❌ "Pillow" or "throw pillow"
• ✓ "Cream linen throw pillow with fringe edges, 18x18 inches"

Food/Beverage:

• ❌ "Coffee" or "ground coffee"
• ✓ "Medium roast ground coffee in 12oz bag, single-origin Ethiopian beans"

Tools to help you generate alt text at scale

1. ChatGPT or Claude AI — Paste a list of products and ask for alt text. Works well for getting templates you can personalize.
2. Shopify apps like "Alt Text AI" — Uses machine learning to auto-generate alt text from images. Not perfect, but a good starting point.
3. Google's AltText Chrome Extension — Shows missing alt text as you browse your site.
4. RankCart audits — Shows you exactly which images need alt text, organized by page.

Test your alt text in Google Image Search

After adding alt text to a batch of products, test that Google can index them:

1. Wait 1–2 weeks for Google to re-crawl your site
2. Search for your product names + "site:yourstore.com" in Google Images
3. Your images should start appearing in results
4. As you build up more indexed images, Google Image Search becomes a growing traffic source

Ongoing maintenance

Alt text isn't a one-time fix:

• When you add new products, always add alt text at the same time
• When you update product photos, check if alt text still applies
• Every 3–6 months, audit your top-selling products to ensure their alt text is detailed and accurate