AltText.ai

Overview

AltText.ai generates context-aware descriptions for images, with the aim of supporting accessibility and helping search engines understand image content. It can fit into a range of workflows: through a website, browser extension, CMS integration, or developer tools. The service supports more than 130 languages, and its free site scanner can crawl up to 25 pages to identify images missing alt text and provide an AI visibility score.

One credit covers alt text for one image. Translating that text into each additional language costs one credit per language. The company is Alt-Tab LLC, doing business as AltText.ai.

Key features

Image descriptions and language support

The service generates image descriptions in more than 130 languages. Standard supported image formats include JPG, PNG, GIF, WebP, and BMP. Paid plans also support AVIF, HEIC, HEIF, JP2, SVG, and TIFF; each image in these formats uses two credits.

Integrations and developer tools

Listed integrations include WordPress, Shopify, WooCommerce, Magento, BigCommerce, Contentful, DatoCMS, Storyblok, Cloudinary, Dropbox, Pinterest, and Google Drive. Developers can use a REST API, webhooks, or an MCP server to generate alt text. Chrome and Firefox extensions can generate descriptions from images on the web, including on sites such as Squarespace and Webflow.

Batch workflows and custom rules

Custom generation rules and publishing workflows are supported. The enterprise offering supports batch processing of thousands of images per hour without daily limits. Enterprise plans also advertise dedicated support, API access, and volume pricing.

Privacy and enterprise security

AltText.ai's privacy policy says submitted images are kept temporarily for processing and removed from the company's systems afterward. It also says image and alt text information is not used to train, enhance, or generate AI models without expressed written consent. For enterprise processing, the company states that data is encrypted in transit using TLS 1.2 or higher and at rest, and images are processed in memory without being retained beyond processing.

The enterprise page describes generated output as aligned with WCAG 2.1 AA, ADA, Section 508, and the European Accessibility Act. These are statements about the service's output, not a guarantee that every published image or website meets those standards.

Pricing

AltText.ai has a free plan and free trial. Paid pricing is listed as starting from $5/mo, while the available credit-based plans are:

• Credit Pack: $3, paid once (billed $3 /pack; 50 credits · no subscription)
• Bronze: $49 a year (billed $49 /yr; 1,200 credits · 4¢ per image)
• Silver: $189 a year (billed $189 /yr; 6,000 credits · 3¢ per image)
• Platinum: $229 a month (billed $229 /mo; 10,000 credits / month · 2¢ per image)
• Gold: $489 a year (billed $489 /yr; 24,000 credits · 2¢ per image)
• Titanium: $1,179 a year (billed $1179 /yr; 60,000 credits · 2¢ per image)
• Enterprise: price not listed (billed Custom quote; Volume pricing · shared credits across domains · usage-based or prepaid options)

Credit use depends on what you process: one credit covers one image, translations consume one credit per additional language, and the listed paid-only formats use two credits per image. Consider those rules alongside each plan's credit allowance when estimating volume.

Platforms

AltText.ai is available as a web service, browser extension, and API. Its integrations span ecommerce platforms, content management systems, media services, and storage or publishing tools. The Chrome and Firefox extensions provide an option for generating descriptions from images encountered on the web.

Who it's for

AltText.ai may suit site owners who need to find images without alt text, teams managing images across a CMS or ecommerce platform, and developers integrating description generation into an existing workflow. Its language coverage and translation credits may also matter to teams publishing in multiple languages. The enterprise option is aimed at higher-volume processing, with batch support, custom pricing, shared credits across domains, and dedicated support.

For smaller or occasional workloads, the free scanner and one-time Credit Pack offer ways to assess site gaps or purchase credits without a subscription. The plan structure is credit-based, so users should account for translations and paid-only image formats when comparing their expected usage with the listed allowances.

Pros and cons

Pros

• More than 130 languages are supported.
• Web, extension, API, webhook, and MCP access cover several ways to incorporate generation.
• A free scanner checks up to 25 pages for missing alt text.
• Enterprise plans offer high-volume batch processing and custom pricing.

Cons

• Credit consumption can increase for translations and certain paid-plan image formats.
• Enterprise pricing is available only by custom quote.
• The free scanner's crawl is limited to 25 pages.

Alternatives

Other options in this category include Alt Audit, Alt Text Studio, AltTextLab, AutoAlt.ai, Uix Page Builder, AI Alt Text Generator, AI Image Alt Text Generator, and ALTtext.org. See the full AI Alt Text Generators category for more choices.

Verdict

AltText.ai combines image description generation with site scanning, integrations, browser extensions, and developer access. Its broad language and platform support make it relevant to both individual site owners and teams with established publishing workflows. The main practical consideration is the credit system: translations and some image formats use extra credits, while enterprise pricing requires a custom quote. For anyone evaluating it, the free scanner provides a way to identify missing alt text on a limited set of pages before choosing a plan.