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ALTer

Free#25 of 27 in AI Alt Text Generators

ALTer: A focused, free Chrome extension for checking and improving image descriptions. Ranked #25 of 27 in AI Alt Text Generators by our editors (5.3/10); pricing: Free plan; best for free browser-based accessibility checks.

5.3/10Editor score
Visit ALTer
ALTer5.3 Visit ALTer

At a glance

  • Editor score
    5.3 / 10
  • Pricing
    Free plan
  • Best for
    Free browser-based accessibility checks
  • Free plan
    Yes
  • Paid from
    None
  • Facts checked
    21 Sep 2026
ALTer screenshot

  • Where it wins

    • Detects images without accessible descriptions
    • Generates and injects AI descriptions into image alt attributes
    • Offers 30 free credits monthly with screen reader support

  • Where it doesn't

    • Works as a Chrome extension rather than across multiple platforms
    • No bulk processing for handling many images at once
    • No API access or integrations for broader workflows

Our verdict on ALTer

ALTer is a free Chrome browser extension for people who need better access to image descriptions while browsing the web. It detects images without accessible descriptions, displays an ALT badge over them, and generates alt text with AI. The generated description is injected into the image’s alt attribute and made available to screen readers, making the product especially relevant to blind and low-vision users and to anyone checking accessibility during everyday browsing.

The workflow is focused and browser-based. When an image lacks alt text, the ALT badge identifies it; selecting the badge generates a description and adds it to the image’s alt attribute. This gives ALTer a clear role in accessibility checks and on-page image review, rather than positioning it as a broader content or publishing system. Its platform scope is limited to a Chrome extension, so it fits users who work directly in Chrome and need an in-browser way to identify and improve image descriptions.

The free plan provides 30 credits per month, with one credit used for each image description. That allowance makes ALTer suitable for occasional checks and individual browsing, but users handling large image collections may find the credit-based workflow restrictive. Bulk processing, API access, integrations, and broader platform coverage are not part of its stated scope. Choose ALTer for a free, focused way to generate alt text while browsing; choose another tool if you need batch workflows, connected systems, or use beyond Chrome.

ALTer pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on alteralt.com

ALTer fact sheet

Free planYes
Paid fromNone
Bulk processingNot verified
API accessNot verified
CMS pluginsNot verified
Supported languagesNot verified
Image formatsNot verified
Custom generation rulesNot verified
Publishing workflowsYes
DeploymentBrowser extension
PlatformsChrome extension
Built forSolo, Small business (editorial estimate)
PricingFree plan
Websitealteralt.com
Facts checked21 Sep 2026

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Featured on iTechGuides

Featured on iTechGuides — ALTer 5.3/10

ALTer is listed in our AI Alt Text Generators directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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