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AltTextAPI
What it is
AltTextAPI generates descriptive alt text for images using their URLs, through an API and web service. The maker says generated descriptions are checked against WCAG 2.1 criteria, returned in under two seconds, and available in 130+ languages. Connections include a REST API, JavaScript widget, and WordPress plugin. The widget is described as compatible with WordPress, Shopify, Webflow, Squarespace, and plain HTML. In WordPress, the plugin can create text when images are uploaded and process existing media in batches of five. Image URLs must be publicly accessible; the API cannot retrieve images from private networks, including localhost and 127.0.0.1. The maker says images are processed in memory, discarded after generation, and not stored, shared with third parties, or used for model training. The free plan is free and includes 50 images monthly in English. Paid plans start at $9 a month, though their buttons are marked “Coming Soon” on the pricing page.
For and against
For
- WordPress plugin supports upload-time and batch generation.
- Widget supports WordPress, Shopify, Webflow, Squarespace, and plain HTML.
- Maker says descriptions meet WCAG 2.1 criteria.
- Images are not stored or used for model training.
Against
- Free plan is limited to 50 images monthly.
- Free plan supports English only.
- Image URLs must be publicly accessible.
- Paid-plan buttons are marked “Coming Soon.”
The verdict
AltTextAPI offers several ways to generate image descriptions, including a WordPress plugin and a REST API. Check the public-URL requirement and free-tier limits, and note that paid-plan buttons are marked “Coming Soon.”
Who it suits
It suits site owners and content teams who need image descriptions through a website, API, or WordPress workflow. The free tier may fit limited English-language use; the maker describes paid tiers for growing sites, ecommerce teams, and agencies.
Plans and prices
Free
50 images/month · English · REST API · usage dashboard
Read 7 Oct 2026 · altextapi.com
Pro
1,000 images/month · 130+ languages · custom keywords · email support
Read 7 Oct 2026 · altextapi.com
Business
5,000 images/month · everything in Pro · priority support
Read 7 Oct 2026 · altextapi.com
Agency
Unlimited images · everything in Business · white-label ready
Read 7 Oct 2026 · altextapi.com
On the record
- Accessibility
- The maker says generated alt text is validated against WCAG 2.1 criteria.altextapi.com · read 7 Oct 2026
- Features
- The WordPress plugin can generate alt text on upload and bulk process existing media in batches of five.altextapi.com · read 7 Oct 2026
- Free plan limit
- The free tier includes 50 images per month, and generation stops until the next billing cycle when its limit is reached.altextapi.com · read 7 Oct 2026
- Generation
- The service says it returns alt text in under 2 seconds and supports 130+ languages.altextapi.com · read 7 Oct 2026
- Image access limit
- The API cannot download images from private networks, including localhost and 127.0.0.1; image URLs must be publicly accessible.altextapi.com · read 7 Oct 2026
- Image handling
- The maker says images are processed in memory, not stored or used for model training, and discarded after generation.altextapi.com · read 7 Oct 2026
- Integrations
- The maker lists a WordPress plugin, JavaScript widget, and REST API as integration options.altextapi.com · read 7 Oct 2026
- Intended users
- The maker describes Pro as for growing sites and professional bloggers, Business for ecommerce stores and content teams, and Agency for agencies managing client sites.altextapi.com · read 7 Oct 2026
- Paid plan availability
- The pricing page marks the Pro, Business, and Agency plan buttons “Coming Soon.”altextapi.com · read 7 Oct 2026
- Security
- The maker says its infrastructure is GDPR compliant and that image data is not shared with third parties.altextapi.com · read 7 Oct 2026
- Support
- The pricing page lists community support for Free, email support for Pro and Business, and priority support for Agency.altextapi.com · read 7 Oct 2026
- Supported sites
- The JavaScript widget is described as working on WordPress, Shopify, Webflow, Squarespace, and plain HTML.altextapi.com · read 7 Oct 2026
- What it does
- AltTextAPI generates descriptive alt text for images from image URLs.altextapi.com · read 7 Oct 2026
