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Best AI Alt Text Generators in 2026

AI alt text generators can help create image descriptions within a publishing workflow. Compare supported image formats and languages, then consider API access, bulk processing, CMS plugins and custom generation rules. Publishing workflows, free-plan availability and paid-from pricing are also listed, helping you assess how a tool might fit your process and budget. Alt Audit, AltTextLab and Altvisor are among the entries. Look at where descriptions are created and published, and which integrations, processing options or controls matter for that work.

27 apps
Research read 23 Sept 2026
How the order is worked out

1

AI Alt Text Builder

Free plan Open source APIWeb

AI Alt Text Builder works within WordPress and offers both individual and bulk workflows. Review its requirements and the image data sent during generation before choosing a plan or mode.

9.0 From $4.99/mo (annual) Visit site
2

Altagonist

Free plan Open source Self-hostedWebWindows

Choose Altagonist if you manage WordPress images and want bulk alt text generation with language and quality controls.

9.0 Free plan Visit site
3

Alt Text Pro

Free plan Open source APIWeb

Alt Text Pro offers editable drafts, WordPress workflows, and an API, with plan features tied to credit allowances.

8.5 Free plan · paid from $4/mo Visit site
4

AI Image Alt Text Generator

Free plan Self-hostedWeb

This free plugin offers manual, automatic, and bulk alt-text generation within WordPress. Before using it, configure an AI provider and review that provider’s terms and privacy policy.

7.3 Free plan Visit site
5

AI Alt Text Generator

Free plan Web

AI Alt Text Generator offers bulk and automatic generation, page context, and SEO keyphrase support for WordPress images.

7.2 Free plan · paid from $29/yr Visit site
6

Alt Audit

Free plan APIWeb

Alt Audit combines page-level image checks, generated text, and report exports, with a WordPress plugin and API access on listed plans.

7.2 Free plan · paid from $5/mo Visit site
7

AltGen

Free plan APIWeb

AltGen combines image intake, multilingual alt text generation, review, and export with API and webhook options.

7.2 Free plan · paid from $29/mo Visit site
8

AltText.ai

Free plan APIExtensionWeb

AltText.ai offers multiple ways to generate and route image descriptions, from browser extensions to developer tools. Check credit use and format pricing against the volume and file types you need.

7.2 From $5/mo Visit site
9

AltText.io

Free plan APIExtensionWeb

AltText.io combines image metadata generation with a WordPress plugin, API, and integrations for several content platforms.

7.2 Free plan · paid from $19/mo Visit site
10

ALTtext.org

Free plan ExtensioniPhoneMac+1

ALTtext.org offers several ways to generate image descriptions, from a browser tool to platform extensions and Apple apps.

7.2 Free plan · paid from $9.99 Visit site
11

Alta

Free plan Web

Alta combines image description generation with a page checker, plus tools for chart content and context-aware output.

7.1 Free plan · paid from $29/yr Visit site
12

ALTification

Free plan ExtensionWeb

ALTification combines page-aware image text generation with bulk scanning and WordPress integrations. Its plans include a free trial, one-time credit packages, and monthly options.

7.1 Visit site
13

AltTextAPI

Free plan APIWeb

AltTextAPI offers several ways to add generated image descriptions to a site, with a free tier and plans listing higher monthly limits.

7.1 Free plan · paid from $9/mo Visit site
14

AltTextLab

Free plan APIExtensionWeb

AltTextLab offers several ways to generate and connect alt text, from CMS integrations to browser extensions and an API.

7.1 Free plan · paid from $4/mo (annual) Visit site
15

ALTer

Free plan Extension

ALTer offers on-demand descriptions for images missing alt text, with a monthly credit allowance. It is a Chrome extension and requires an account to use.

7.0 Free plan Visit site
16

Alt Text Studio

Free plan ExtensionWeb

Alt Text Studio supports several input formats, languages, and publishing workflows, including a WordPress plugin and Chrome extension.

6.9 From $4/mo Visit site
17

AutoAlt.ai

Free plan APIExtensionWeb

AutoAlt.ai combines multilingual alt-text generation with plugins, bulk processing, and an API. Check its file-size and dimension requirements, and note that paid credits are consumed per image.

6.9 Free plan · paid from €4.49/mo Visit site
18

ATaaS

Free plan APIWeb

Choose ATaaS if you need image alt text generated through an API or web interface, especially when page context or bulk processing fits your workflow.

6.8 Free plan · paid from $9/mo Visit site
19

Altvisor

Free plan Web

Altvisor combines alt-text drafting, scanning, and accessibility reporting workflows for EU e-commerce sites.

6.7 Free plan · paid from €12/mo Visit site
20

ImageComply

Free plan WebWindows

ImageComply combines plugin-based alt-text generation with WordPress, WooCommerce, and SEO integrations.

6.7 Free plan · paid from $25/mo Visit site
21

Seeing AI

Free plan AndroidiPhone

Choose Seeing AI if you want a free mobile app that narrates text, images, and product information for blind and low vision use.

6.7 Free plan Visit site
22

Caseo

Free plan Web

Choose Caseo if your Shopify store needs generated alt text and SEO content with review controls and bulk processing.

6.6 From $9 · 15-day trial Visit site
23

AI Auto Alt Text Generator

Free plan Web

6.1 Free plan Visit site
24

Alt Text IQ

Free trial Web

Alt Text IQ provides a catalog-focused workflow for drafting, reviewing, and publishing Shopify image alt text.

5.8 From $29/mo · 7-day trial Visit site
25

WriteAlt

Free trial APIExtensionLinux+2

WriteAlt offers multilingual, batch alt-text generation alongside image optimization and publishing integrations.

5.8 From $3.17/mo (annual) Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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