Freemium: free tier scans up to 500 images per site with full compliance dashboard, CSV export, and Gutenberg block support. Paid Pro tier (unlimited scans plus AI-generated alt text, scheduled reports, and page-builder integrations) is purchased via Freemius checkout; exact Pro pricing is not publicly disclosed on the site.
TDF Developments is an independent UK studio that builds small, single-purpose WordPress plugins rather than broad, all-in-one toolkits. Its current product is TDF Image Alt Scanner, a plugin that scans an entire WordPress site — posts, pages, custom post types, the Media Library, and WooCommerce product galleries — to locate images with missing, decorative, filename-only, or otherwise low-quality alt text. Results are shown in a sortable, filterable table with a compliance-score dashboard, scan history, inline editing, CSV export, and support for Gutenberg image, cover, and gallery blocks. The free tier covers up to 500 images per site. A paid Pro tier, sold through Freemius checkout, removes the image cap and adds AI-generated alt text suggestions (using the site owner's own API key for Anthropic Claude, OpenAI, or Google Gemini), scheduled re-scans with email or Slack reports, branded WCAG 2.1/2.2 PDF compliance reports, support for 30+ languages, WooCommerce-aware prompts, and integrations with popular page builders (Elementor, Beaver Builder, Bricks, Divi). The plugin is GPL-licensed, requires WordPress 6.0+ and PHP 8.1+, and the studio markets it as privacy-first: no data leaves the site unless the user explicitly wires in their own AI API key.
Key Features
Site-wide alt text scanning — Scans posts, pages, custom post types, the Media Library, and WooCommerce galleries to classify every image's alt text as Missing, Decorative, Filename-only, or Valid.
Compliance dashboard — Sortable, filterable results table with a compliance-score dashboard, scan history, and inline editing directly from the results view.
CSV export — Export scan results to CSV for reporting or bulk editing outside WordPress.
AI-generated alt text (Pro) — Generates alt text suggestions using the site owner's own Anthropic Claude, OpenAI, or Google Gemini API key.
Scheduled re-scans and reporting (Pro) — Runs scheduled re-scans with email or Slack notifications, plus branded WCAG 2.1/2.2 PDF compliance reports.
Page builder and WooCommerce support — Native Gutenberg block support plus Pro integrations with Elementor, Beaver Builder, Bricks, Divi, and WooCommerce-aware prompts.
Pros & Cons
Pros
Free tier scans up to 500 images with a full compliance dashboard, CSV export, and Gutenberg block support — no signup or credit card required to start
Pro tier adds genuinely useful automation: AI-generated alt text (bring-your-own API key), scheduled re-scans, and branded WCAG PDF reports
Privacy-conscious design — GPL-licensed, no tracking, and no data leaves the site unless the user wires in their own AI key
Cons
Exact Pro pricing is not published on the site — buyers must go through Freemius checkout to see cost
AI alt-text generation requires the user to supply and pay for their own Claude/OpenAI/Gemini API key separately
Narrow, single-purpose tool (alt text only) rather than a full accessibility or SEO audit suite