AutoAlt.ai

Overview

AutoAlt.ai generates alt text for product and website images, aimed especially at shops and site teams with recurring catalog work. Its SEO-aware output, bulk processing and CMS connections make it a stronger fit for ongoing publishing than occasional one-off descriptions. The free tier is useful for a small monthly batch; paid plans suit larger volumes, with unused paid credits carrying forward.

Key features

The service identifies product categories, brands, colors and attributes, and can weave in long-tail keywords. That makes it relevant to commerce teams producing consistent descriptions across product pages, though search terms should not displace accurate, useful descriptions for people using assistive technology. Custom prompts, writing styles and generation rules provide control over output.

Every plan includes bulk upload, plugins, API access, multilingual generation and EAA compliance proof. AutoAlt.ai supports more than 120 languages and connects with Shopware, WordPress/WooCommerce, Drupal, Joomla, Magento, Shopify, PrestaShop, TYPO3, Chrome and Firefox. This breadth is valuable for agencies and businesses with several publishing environments; a site using one platform for a modest image library may find it more than it needs.

The Developer API accepts image URLs or Base64 images, along with SEO keywords, custom prompts and writing styles, and supports multilingual alt text. The service processes uploaded images without storing them, returning alt text, a title and associated data. The company says only image data is sent to OpenAI and Google for processing, with no personal data or metadata; a data processing agreement is available on request. Its servers are in Frankfurt and operated by German providers. German support is offered, with the company also describing personal help for integrations from Aalen.

Supported formats include JPG, JPEG, PNG, WebP, SVG, HEIC, GIF, BMP and AVIF. Each image must be under 16 MB and at least 50×50 pixels, constraints worth checking against a catalog's source assets before committing to a workflow. Each image uses one credit regardless of format or how many languages are generated, so translation breadth does not multiply the quota cost.

Pricing

The Freemium plan costs nothing and provides 50 credits per month without requiring a credit card. It is a reasonable way for a blog or small site to try recurring generation, but the cap is quickly reached by larger image libraries.

Starter costs $4.49 a month for 100 images/month, or 4.49 ct/image, and is intended for blogs, portfolios and small websites. Professional costs $16.99 a month for 500 images/month, or 3.40 ct/image, and targets small shops. Business costs $52 a month for 2,000 images/month, or 2.60 ct/image, for mid-sized e-commerce. Agency costs $105 a month for 5,000 images/month, or 2.10 ct/image, for agencies and large e-commerce clients. The declining per-image rate rewards higher-volume use, but each standard tier still has a monthly quota. Unused paid credits roll over and do not expire, reducing the pressure to consume a full allowance every month.

For more than 10,000 images, enterprise customers can request custom pricing with volume discounts, SLAs and invoice payments. That is the relevant route for larger catalogs needing negotiated volume or service terms.

Platforms

AutoAlt.ai is available through the web, API and browser extension, with CMS plugins for the listed commerce and publishing systems. This gives both nontechnical site operators and developers a route into the same image-description workflow.

Who it's for

Choose AutoAlt.ai if your shop, agency or content team needs to generate descriptions repeatedly across a catalog, especially when multilingual output, bulk work or API integration matters. A small site can start with the 50-credit free plan or Starter, while larger teams can scale through the volume tiers. It is less compelling for occasional single-image needs, and teams should verify that their typical file sizes and monthly volume fit the limits.

Pros and cons

Broad publishing reach: CMS, browser and API integrations make it practical across varied storefronts and content systems.

Predictable credit accounting: One image costs one credit even across multiple languages, and paid credits do not expire.

Privacy and regional hosting details: Image-only processing, no image storage and Frankfurt hosting may suit teams attentive to data handling.

Monthly ceilings: Free use stops at 50 credits, while paid plans have fixed image allowances unless a larger customer negotiates enterprise terms.

File constraints: The 16 MB maximum and 50×50 minimum can rule out some source images without preparation.

Alternatives

For a broader comparison, see AI Alt Text Generators.

AI Alt Text Builder may suit web-only users who want a cheaper entry tier and can use their own OpenAI API key for unlimited single-image generation on its free plan.

ALTtext.org is worth comparing if you want extension and Apple-platform access alongside the web.

Caseo offers a free plan with a full store scan and unlocked features during a 15-day trial window, making it an alternative to assess for a time-limited store evaluation.

Alt Text Pro is another API and web option, with a WordPress plugin included in its free plan.

Altagonist is an alternative with web and Windows platforms and a free allowance of 50 credits per month.

WriteAlt may be preferable if you need its broader listed platform range, including Linux and Windows, and a one-time purchase option.

Alt Audit is another API and web option, with paid plans that include bulk processing and export capabilities.

ALTification is an alternative for users seeking an extension or web workflow with a one-time purchase option.

Verdict

AutoAlt.ai is a strong choice for commerce teams and agencies that need SEO-conscious, multilingual alt text at catalog scale, with integrations and an API that support repeatable publishing. Its one-credit-per-image pricing and non-expiring paid credits are practical advantages. Look elsewhere if your needs are sporadic, your images exceed its size limits, or the monthly allowances do not match your volume.