內容簡介
AI Alt Text Generator for Images 外掛自動為您的 WordPress 圖片生成描述性且符合 SEO 的替代文字。無需手動為每張圖片輸入替代標籤，您可以一次性為單張圖片、整個頁面或整個媒體庫生成替代文字，提升無障礙性與搜尋引擎能見度。
【主要功能】
• 自動生成替代文字
• 媒體庫健康檢查
• 批次處理缺少替代文字的圖片
• 支援多語言使用
• 即時進度計數器
外掛標籤
開發者團隊
② 後台搜尋「AI Alt Text Generator for Images – Bulk Alt Text & Accessibility Audit」→ 直接安裝（推薦）
原文外掛簡介
AI Alt Text Generator for Images writes descriptive, SEO-friendly alt text for
your WordPress images automatically. Instead of typing an alt tag for every image
by hand, you can generate alt text for one image, for a whole page, or for your
entire media library at once.
Missing alt text hurts twice. It locks out visitors who use screen readers, which
is an accessibility failure under WCAG, and it hides your images from Google Image
search. Most WordPress media libraries have hundreds of images with no alt text at
all, because writing them by hand is slow, repetitive work that nobody enjoys.
This plugin does that work for you.
Alt Text Audit
Scan your entire media library and get a health score for its alt text. The audit
flags every image with a problem:
Missing alt text
Empty alt attributes
Duplicate alt text reused across images
Alt text that is too long for screen readers
Placeholder junk left behind by other tools
Every flagged image can be fixed right there: generate new alt text with AI, edit
it by hand, or mark it as decorative and ignore it. You can filter the list and
generate alt text for everything currently shown in one action.
Bulk Alt Text Generator
Process your whole media library in one run. The bulk generator works through
every image missing alt text in batches of 100, with a live progress counter
across the entire run, pause and resume, and a per-image log so you can see
exactly what was written and what failed. Before a large run starts, a
confirmation dialog tells you how many images will be processed.
Generate Alt Text Anywhere You Work
Block editor – an AI Alt Text panel in the Content tab of the image block
Media Library – a generate button right in the attachment details modal
Bulk generator – for the whole library at once
On upload – optionally generate alt text automatically for every new image
REST API – an endpoint for external tools and your own automation
Works in Your Language
Unlike most alt text plugins, this one is not English-only. The admin screens, the
editor button and the notices are translated into Spanish (es_ES) and
Brazilian Portuguese (pt_BR).
The generated alt text follows your site’s language too, so a Spanish site gets
Spanish alt text and a Brazilian site gets Portuguese alt text, without any extra
configuration.
Bring Your Own AI
On WordPress 7.0 and later, the plugin uses your site’s native AI Connectors
configuration. No separate API key and no extra account needed.
On WordPress 6.x, the plugin uses your own OpenAI API key. Generation is
billed to you directly by OpenAI, at roughly $0.001 per image with gpt-4o-mini.
There is no subscription, no per-image fee and no account with us. The plugin is
free and you pay only your own AI provider, if anything.
Supported Image Formats
JPEG, PNG and WebP are analysed directly. AVIF images are converted to JPEG
automatically before analysis instead of being rejected.
Who This Is For
Site owners with a large media library and no alt text
Agencies and freelancers doing accessibility or SEO cleanups for clients
Bloggers and photographers who publish a lot of images
Anyone working toward WCAG accessibility compliance
External services
This plugin connects to the OpenAI API to generate alt text for your images. It is
required for AI generation on WordPress 6.x sites that do not have the native
WordPress 7.0 AI Connectors configured.
When you click “Generate” (in the block editor, the Media Library, or the Bulk
generator) or “Test Connection” on the settings page, the plugin sends the image
(as a base64 data URI) and a short text instruction to OpenAI’s Chat Completions
endpoint (https://api.openai.com/v1/chat/completions), authenticated with the API
key you configure. The “Test Connection” button sends only a minimal “Hi” message
with no image, to verify the key works. Nothing is sent unless you trigger one of
these actions.
This service is provided by OpenAI. By using the OpenAI path you agree to their terms:
Terms of Use: https://openai.com/policies/terms-of-use
Privacy Policy: https://openai.com/policies/privacy-policy
On WordPress 7.0+ with AI Connectors configured, generation uses your site’s
configured AI provider through WordPress core instead, and this plugin makes no
direct external calls.
Development
The full, unminified source code — including the React/JavaScript sources under
src/ and the build tooling — is publicly available at:
https://github.com/internick2017/smart-alt-generator
Build the compiled assets in build/ with npm install && npm run build.
