How long should Shopify alt text be?

Under 125 characters is the sweet spot. Shopify's alt field technically accepts up to 512 characters, but Google Images truncates around 125 and screen readers get harder to follow past that length.

Should every product photo have different alt text?

Yes. Pasting the same alt on all 8 photos tells Google they're duplicates and cuts your image-search coverage. Use a different variation per photo so each image can rank for a different long-tail query.

Where do I add alt text in Shopify?

In Products → your product → hover any image → click 'Add alt text'. On themes with product galleries, the alt attribute is what Google Images reads.

Does alt text affect Shopify SEO?

Directly it drives Google Images and AI answer engines (ChatGPT, Perplexity, Google AI Overviews) — increasingly big traffic sources for ecommerce. Indirectly it helps on-page relevance and accessibility, both of which Google factors into overall ranking.

Can I bulk-apply these across my whole catalog?

This free tool generates alt text for one product at a time. ListerRank Pro connects to your Shopify store and rewrites alt text across every product image in one run.

Yes. No signup, no credit card. There's a light bot-check to keep the AI available for real users, but no per-user usage cap.

Free Shopify AI tool

Free Shopify Alt Text Generator

Describe your product and what's in the photo. Get 5 distinct, SEO-friendly alt texts under 125 characters — ready to paste into every Shopify product image.

No signup 5 variations per run Screen-reader ready

What is your product?What's in the photo? (optional)Primary keyword (optional)

How it works

Four steps. Zero friction.

01
Describe your product — what it is, materials, key features.
02
Optional: describe what's in the specific photo (close-up, lifestyle, on-model, flat lay).
03
Optional: paste the primary keyword you want Google Images to match.
04
Click Generate, then paste one alt text into each Shopify product image.

Context

Why Shopify alt text is the highest-leverage SEO fix you're not making

Shopify leaves the alt field blank by default. Most stores never fill it, which means every product image is invisible to Google Images, invisible to screen readers, and invisible to the AI answer engines (ChatGPT, Perplexity, Google AI Overviews) that increasingly decide which product gets recommended when a shopper asks "best minimalist coffee mug under $30."

Good alt text does three jobs at once: it describes the photo for accessibility, matches image-search queries, and gives AI models the vocabulary they need to name your product. Aim for a plain descriptive sentence under 125 characters, weave the primary keyword in once, and skip filler like "image of" or "photo of." Vary the wording across every photo on the same product so each image can rank for a different long-tail — repeating one alt on all 8 images is worse than leaving them blank.

Combined with clean titles, meta descriptions, and product schema, well-written alt text is the fastest organic-traffic win a Shopify store can ship this week.

Audit my whole store — free Or bulk-apply across the catalog →

FAQ

Frequently asked questions

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