Product Alt Text Generator

Generate SEO-optimised alt text for product images that ranks in Google Image Search — completely free.

Free Tools

Product name

Visual details (colour, material, angle, background)

surface

Image alt text is one of the most underutilised SEO levers in e-commerce. A well-written alt text does three things: it describes the image accurately for visually impaired users, it signals to Google what the image contains for Image Search ranking, and it acts as a fallback when images fail to load.

Most store owners either skip alt text entirely or write something generic like 'product image' — which is both an accessibility failure and a missed SEO opportunity. Google Images drives 22% of all web searches, and product images that rank in Image Search generate free, high-intent traffic that most brands leave on the table.

Our free alt text generator is trained on e-commerce SEO best practices and accessibility guidelines (WCAG 2.1 AA). It writes alt text that passes both Google's quality signals and screen reader requirements — under 125 characters, keyword-inclusive, and descriptive without keyword stuffing.

For stores with large product catalogs, Sellable's full platform bulk-generates alt text for your entire image library, syncs directly to Shopify, and monitors alt text coverage across your store. The free tool gives you production-ready alt text for individual images — no account needed.

Best Practices

Get the most from this generator.

Lead with the product name, not 'image of'

Google and screen readers both ignore 'image of' or 'photo of' prefixes — they already know it's an image. Start directly with the most important descriptor: brand + product + key attribute.

Include colour and material whenever visible

Colour and material are high-intent search modifiers. Someone searching 'rose gold water bottle' is closer to buying than someone searching 'water bottle'. If it's visible, include it.

Describe context for lifestyle shots

For lifestyle images, include the setting and activity: 'woman applying serum in bathroom' or 'coffee mug on marble desk with open laptop'. Context signals help Google understand the use case and rank for relevant searches.

How it works

Three steps to better copy.

Describe your product image

Enter the product name and key visual details — colour, material, angle, background. The more specific you are, the more accurate and keyword-rich the alt text will be.

AI writes SEO-optimised alt text

Sellable's AI applies e-commerce SEO best practices and WCAG accessibility guidelines to write alt text that ranks in Google Image Search and passes screen reader audits.