AltGenius: Alt Text Optimizer

Keep every product image described without writing it by hand

by Image Optimizer · Launched: August 2016

4.9 (57) on Shopify

Manage this app

Verify your developer profile to earn a badge and build trust for your app.

Automatically update product image alt texts to improve SEO and Accessibility.

Get it on Shopify →

About AltGenius: Alt Text Optimizer

AltGenius writes alt text for your product images from a template you choose, using details such as title, type, brand and variant. You see the result on your own products before you start. By default it fills in only images with no alt text, so anything you wrote stays as it is. Alt text with links or embed code, which review and video apps use, is skipped. After that, new and edited products get alt text automatically. We've been doing this since 2016.

Last verified: November 7, 2026 · Fresh

App details

Developer: Image Optimizer
Category: Store design
Pricing: Paid
Launched: August 2016
Rating: 4.9 (57) on Shopify

Key features

Automatic updates
Unlimited product images
Email support

Integrations with:

Shopify Admin

1 plan · 199-day free trial

Basic

$4.99/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 100 Shopify App Store reviews

Use the arrows to read individual reviews

Gets the job done fast and efficiently, Ease to use, highly recommended.

— Distinguished Fine Men's & Women's Apparel

Superb little app. It's very handy, I use it all the time and it works very well.

— Little Ones Preloved

Great app and easy to use!

— Maxxteknik

Very effective application. Deserves 5* +. To recommend!

— Xios Store SNC

Wonderful. It works! Wish I googled this sooner.

— P.A.M. (Perks And Mini)

Great service at a reasonable price

— Kpughdesigns

Works as advertised. I asked for a new feature to distinguish multiple images for a single product so they don't all have the same alt text. This way, Google would know they are different. They added the feature in less than 24 hours. Great.

— CALI Strong

Très bon travail, surtout pour ce prix, ajouter a leurs application pour compresser les images, c'est nickel

— Designix

Would recommend them will save you lots of time so you can run your business.

— Nvrift Adventures

For a cost of $1.99 I've managed to rewrite detailed alt-tags for over 9,000 images. You simply can't get better than that - highly recommended app, thank you!

— STFM

Does what it's supposed to do - I heard Shopify's Director of Product discussing the functionality of this app as something they would like to offer in the future on the "Shopify Masters" podcast, but this app offers auto-generated Alt text already. Too bad it can't also pick up on images added to the description. Other than that a great app and a great price.

— aroonasurf.shop

For now everything is perfeckt! Saved me tons of time, optimized around 3 000 images in less than hour.. All in 3 clicks. Great work

— ImaginVibes

I installed this app and it was loading for over 24hours and it created the same alt tag for all of my unique products. No one responded to my message either. waste of time Not good for women's boutique with different products

— Statement Pieces Unlimited

Je n'ai pas vu le résultat encore

— Maoulida

It’s great to get images quickly optimised. But BEWARE. After days of work optimising all the alt descriptions manually, this app wiped out all my hard work and rest it. So although it was great in the beginning, it’s actually ended up costing me days of lost work and effort. Totally gutted. I would suggest only loading this app if you are intending never to optimise the images yourself. OR im...

— ImagineDIY

This app saved me hours of time! My shop has over 200 products, and alt text was added to every photo within minutes.

— The Note House

All images optimized with customizable wording. Really happy for the money. Although 100 words is a lot to write!

— Essential CBD

Super easy to use, just install, play around with the parameters you want to use for your alt text then all your images are updated within around 30-60 mins! So good to know it runs daily so if we add new images it's not ever something we need to worry about.

— Duncan Stewart 1978

What a great service, especially for accessibility. I can not even imagine how long it would have taken us to do this ourselves. And the best part is it does not touch our themes.

— LOOK OPTIC