17.8
Altagonist is a WordPress plugin that generates alt text using image metadata and page content.
Free planOpen sourceWebSelf-hostedWindows
Best AI Alt Text Generators in 2026
AI alt text tools can support image descriptions at different points in a publishing process. Compare image formats and supported languages, then consider whether you need bulk processing, API access, CMS plugins, or custom generation rules. Publishing workflows can help distinguish how descriptions fit into your process, while a free plan and paid-from pricing provide cost comparisons. AltTextLab and Alt Text…
27.7
AI Alt Text Builder is a WordPress plugin that generates descriptive alt text for images in the Media Library.
Free planOpen sourceWebAPI
37.7
Alt Text Pro creates editable AI-assisted alt-text drafts for images in WordPress.
Free planOpen sourceWebAPI
- 4
Alt Audit
Alt Audit generates AI alt text, checks websites for missing or weak image descriptions, and exports accessibility reports.
Free planWebAPI7.3From $5 a month - 5
ALTtext.org
ALTtext.org generates written image descriptions to support accessibility, through a web generator, browser extensions, and Mac and iOS apps.
Free planiOSWebExtensionmacOS7.1From $19.99 a month - 6
AltTextLab
AltTextLab generates context-aware alt text for images, with a focus on accessibility and search optimization.
Free planWebAPIExtension6.7From $4 a month - 7
AutoAlt.ai
AutoAlt.ai generates contextual alt text for product and website images, with a focus on SEO and accessibility compliance.
Free planWebAPIExtension6.7From $4.49 a month - 86.7$9 one-time
- 9
AltText.io
AltText.io generates AI-written alt text and image metadata for accessibility, SEO, and stock photography.
Free planWebAPIExtension6.6From $19 a month - 10
AltTextAPI
AltTextAPI generates descriptive alt text from image URLs through an API and web service.
Free planWebAPI6.6From $9 a month - 11
Altvisor
Altvisor creates image alt text and organizes accessibility work for EU e-commerce websites.
Free planWeb6.6From €12 a month - 12
AltGen
Free planWebAPI6.5From $29 a month - 13
ATaaS
ATaaS is an AI-powered REST API that generates alt text for images, with web access also available.
Free planWebAPI6.5From $79 a year - 14
Seeing AI
Seeing AI is a free app designed with and for blind and low vision people.
Free planAndroidiOS6.5Free plan - 15
WriteAlt
WriteAlt generates AI-assisted alt text and optimizes images for accessibility, SEO, and site performance.
WebAPIExtensionLinux6.5From $38 a year - 16
Alta
Alta generates screen-reader-ready alt text from uploaded images and includes a checker for alt text problems on a page.
Free planWeb6.4From $29 a year - 17
ALTification
ALTification is a WordPress plugin and web service that uses AI to create keyword-aware alt text, captions, and descriptions for images.
WebExtension6.3From $9.99 a month - 18
AltText.ai
AltText.ai generates image descriptions for accessibility and to help search engines understand images.
WebAPIExtension6.3From $49 a year - 19
easyAlt
Web6.3From $390 a year - 20
Alt Text IQ
Alt Text IQ is a paid web app that runs inside Shopify Admin to review and publish product-image alt text.
Web6.2From $29 a month - 21
Alt Text Studio
Alt Text Studio uses AI to create descriptive alt text for images, with options for generating content in 194 languages, including several languages at once.
WebExtension6.0From $4 a month - 22
ImageComply
ImageComply generates alt text for images to support accessibility, ADA compliance, and SEO.
WebWindows6.0From $25 a month - 23
AI Alt Text Generator
AI Alt Text Generator is a WordPress plugin that creates descriptive image alt text for accessibility and image SEO.
Free planWeb5.9Free plan - 24
AI Image Alt Text Generator
AI Image Alt Text Generator is an open-source WordPress plugin that creates descriptive image alt text during upload or on demand.
Free planWebSelf-hosted5.9Free plan - 255.8