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ALTtext.org alternatives

ALTtext.org creates written image descriptions through a web generator, browser extensions, and Mac and iOS apps. The web tool accepts one or many JPEG or PNG images by drag and drop, file selection, or clipboard paste. Extensions add a generate control to ALT text fields on social platforms and a right-click option for other sites. It also supports screen readers and keyboard-only use. The free plan provides 20 ALT texts per day; paid plans include a one-time personal license and monthly team and API options. Bulk processing and publishing workflows are available as well.

1. 1 A

   Altagonist

   Free plan Open source Self-hostedWebWindows

   WordPress teams automating multilingual image descriptions — Altagonist generates alt text from WordPress page content and image metadata, supports 70 languages, and can process hundreds of images at once.

   9.0 Free plan Visit site
2. 2

   AI Alt Text Builder

   Free plan Open source APIWeb

   WordPress Media Library users wanting scored drafts — AI Alt Text Builder adds WordPress Media Library generation, a 0–100 length score, and Pro bulk and upload automation.

   9.0 From $4.99/mo (annual) Visit site
3. 3

   Alt Audit

   Free plan APIWeb

   Website owners auditing image accessibility — Alt Audit scans live pages for missing or weak descriptions and exports PDF reports, alongside WordPress tools and an API.

   7.2 Free plan · paid from $5/mo Visit site
4. 4

   Alt Text Pro

   Free plan Open source APIWeb

   WordPress teams reviewing editable alt-text drafts — Alt Text Pro offers editable WordPress drafts with page context, WooCommerce workflows, and an API for non-WordPress use.

   8.5 Free plan · paid from $4/mo Visit site
5. 5

   AltGen

   Free plan APIWeb

   Large, customized image batches and exports — AltGen accepts URLs, CSVs, and scraped page images, handles batches up to 5,000, and exports edited results to CSV.

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

   AltText.io

   Free plan APIExtensionWeb

   Multilingual metadata across CMS and stock platforms — AltText.io generates metadata in over 130 languages and integrates with CMS, ecommerce, and stock platforms beyond ALTtext.org’s social extensions.

   7.2 Free plan · paid from $19/mo Visit site
7. 7 A

   AltTextAPI

   Free plan APIWeb

   Developers integrating URL-based alt text — AltTextAPI offers a REST API and JavaScript widget for public image URLs, with 130+ languages and WCAG 2.1 validation.

   7.1 Free plan · paid from $9/mo Visit site
8. 8 A

   AI Image Alt Text Generator

   Free plan Self-hostedWeb
   7.3 Free plan Visit site
9. 9 A

   AI Alt Text Generator

   Free plan Web
   7.2 Free plan · paid from $29/yr Visit site
10. 10

    AltText.ai

    Free plan APIExtensionWeb
    7.2 From $5/mo Visit site
11. 11 A

    Alta

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

    ALTification

    Free plan ExtensionWeb
    7.1 Visit site
13. 13

    AltTextLab

    Free plan APIExtensionWeb
    7.1 Free plan · paid from $4/mo (annual) Visit site
14. 14 A

    ALTer

    Free plan Extension
    7.0 Free plan Visit site
15. 15

    Alt Text Studio

    Free plan ExtensionWeb
    6.9 From $4/mo Visit site
16. 16

    AutoAlt.ai

    Free plan APIExtensionWeb
    6.9 Free plan · paid from €4.49/mo Visit site
17. 17 A

    ATaaS

    Free plan APIWeb
    6.8 Free plan · paid from $9/mo Visit site
18. 18

    Altvisor

    Free plan Web
    6.7 Free plan · paid from €12/mo Visit site
19. 19 I

    ImageComply

    Free plan WebWindows
    6.7 Free plan · paid from $25/mo Visit site
20. 20 S

    Seeing AI

    Free plan AndroidiPhone
    6.7 Free plan Visit site
21. 21 C

    Caseo

    Free plan Web
    6.6 From $9 · 15-day trial Visit site
22. 22 A

    AI Auto Alt Text Generator

    Free plan Web
    6.1 Free plan Visit site
23. 23

    Alt Text IQ

    Free trial Web
    5.8 From $29/mo · 7-day trial Visit site
24. 24

    WriteAlt

    Free trial APIExtensionLinux+2
    5.8 From $3.17/mo (annual) Visit site

A different tool may suit you better if image work is tied to a WordPress library, a website audit, client reports, ecommerce, or a larger batch workflow. ALTtext.org spans web, extensions, and Apple apps, but supports JPEG and PNG, and its descriptions are sent to Google’s Gemini API. Its plan structure ranges from daily free use to recurring team and API plans. When switching, weigh where images are managed, whether you need upload automation or editable review, supported formats and languages, batch size, privacy approach, and how the pricing model fits your volume.

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