Alt Text for Product Images: The Complete 2026 Guide
Published November 4, 2026 · 7 min read
Alt Text for Product Images: The Complete 2026 Guide
Getting alt text for product images right is one of the simplest wins in ecommerce — it improves accessibility for visually impaired shoppers, helps your products show up in image search, and reinforces what the page is about for search engines. It also takes about thirty seconds per image once you know the formula.
This guide covers what to write, what to skip, examples from real product pages, and the mistakes that quietly hurt both accessibility and SEO. Since you will be writing a lot of it, a word counter can help you keep descriptions concise while you work through a catalog.
What Alt Text Actually Is (and Is Not)
Alt text (the alt attribute on an <img> tag) is the text alternative to an image. It serves three audiences:
- Screen readers read it aloud to visually impaired users.
- Search engines use it to understand what the image shows.
- Browsers display it when an image fails to load.
Alt text is not a caption, not a keyword dump, and not a second product description. It is a concise description of what the image shows — written so someone who cannot see the image gets the same essential information.
The Formula: What Good Alt Text Includes
A strong product image alt text answers three questions:
- What is it? The product name or type.
- What does it look like? Key visible features — color, material, notable details.
- What is the image showing? The angle or context — front view, close-up, lifestyle shot.
Put it together in one sentence, usually under 100 characters:
- Good: "Navy canvas weekender bag with leather straps, front view"
- Good: "Ceramic pour-over coffee dripper in matte white on wooden counter"
- Good: "Women's merino wool running socks, pair, heather gray"
Notice what these do not include: "image of," "picture of," prices, marketing claims ("best-selling!"), or keyword lists.
Alt Text by Image Type
A product page usually has several images, and each needs its own description.
The Main Product Shot
Describe the product plainly and completely. This is the image that matters most for both accessibility and image search.
- Example: "Black stainless steel French press coffee maker, 34 oz, on white background"
Detail Close-Ups
Say what the close-up reveals — the feature the shopper is zooming in on.
- Example: "Close-up of the French press plunger mechanism and mesh filter"
- Example: "Macro shot of leather grain texture on bag handle"
Lifestyle Images
Describe the scene and what the product is doing in it.
- Example: "Weekender bag packed on a hotel bed next to folded clothes"
- Example: "Pour-over dripper brewing coffee into a glass carafe"
Size and Scale References
Call out the comparison object — that is the whole point of the image.
- Example: "French press next to a standard coffee mug for scale"
Color Variants
Name the color clearly. Color is one of the top things shoppers need from an image.
- Example: "Canvas weekender bag in forest green, three-quarter view"
What to Skip: The Alt Text Mistakes
Keyword Stuffing
Bad: "weekender bag canvas weekender travel bag duffel bag mens weekender sale cheap weekender"
Keyword-stuffed alt text reads terribly in screen readers and can trigger spam signals. One natural mention of the product name is enough.
"Image of" and "Picture of"
Screen readers already announce that the element is an image. Starting with "image of" wastes words and annoys users. Just describe what is shown.
Vague Descriptions
Bad: "product photo," "bag," "coffee maker"
If the alt text could apply to a thousand products, it describes none of them.
Duplicated Alt Text
Every image on the page should have distinct alt text. Ten images all reading "weekender bag" help no one — describe what each image uniquely shows.
Marketing Language
Bad: "Amazing premium luxury weekender bag — best quality guaranteed!"
Alt text is for describing the image, not selling. Keep the selling in the product description where it belongs.
Leaving It Blank on Meaningful Images
Decorative images should have empty alt text — but product images are meaningful images. A missing alt attribute on a product photo is an accessibility failure and an SEO missed opportunity.
Alt Text and SEO: What Actually Helps
Alt text contributes to SEO in two real ways:
- Image search traffic. Product images with good alt text can rank in Google Images and bring qualified shoppers to the product page.
- Page context. Alt text reinforces the page's topic for search engines — one more honest signal about what the page covers.
What does not help: repeating the page's keyword in every image's alt text, stuffing variations, or writing alt text that describes something other than the image. Write for the screen-reader user first; the SEO follows.
Writing Alt Text at Scale
For a catalog of hundreds or thousands of products, alt text feels like a mountain. Some practical approaches:
- Build a template per category. Bags get "[Color] [material] [product type], [view]". Electronics get "[Brand] [model] [product type] in [color], [angle]".
- Write it when you shoot. The photographer or stylist knows what each image shows — capture alt text at the same time as the shoot, not months later.
- Review AI-generated alt text. AI tools can draft alt text fast, but they get colors, materials, and details wrong often enough that every line needs a human check before publishing.
- Prioritize best-sellers. If you cannot do the whole catalog this week, start with your top 20% of products by traffic and revenue.
A Quick Alt Text Checklist
Before you publish, run each image's alt text through this list:
- Describes what the image actually shows
- Under 125 characters
- No "image of" or "picture of"
- No keyword stuffing
- No marketing claims
- Unique to this image (not copied from another image)
- Empty (alt="") if the image is purely decorative
Frequently Asked Questions
What should alt text for product images include?
Include the product name, its key visible features (color, material, size cues), and what the image shows — usually in one concise sentence of about 100 characters or less. Skip phrases like 'image of' or 'picture of.'
How long should alt text be?
Aim for under 125 characters. Screen readers often cut off longer text, and concise descriptions are easier for everyone to scan. If the image needs more explanation, the product description itself is the place for it.
Does alt text help SEO?
Yes. Alt text helps your product images appear in image search results and gives search engines context about the page. But write for accessibility first — keyword-stuffed alt text can hurt more than it helps.
Should decorative images have alt text?
No. Purely decorative images — backgrounds, dividers, decorative icons — should have empty alt text (alt='') so screen readers skip them. Only meaningful images get descriptive alt text.
Can I use the same alt text for every product image?
No. Each image should describe what that specific image shows — the main product shot, the detail close-up, the lifestyle image, the size reference. Duplicated alt text wastes the opportunity and confuses assistive technology.
