Connor Bulmer

AI Auto Alt Text Generator is a lightweight, privacy-conscious plugin that uses OpenAI’s GPT-4o mini vision model to create meaningful, screen-reader-friendly alt text and SEO-friendly titles for your images. Whether you add a single image, bulk-process your library, or just want a one-click fix in the Media Library, the plugin handles it all – no manual effort required.
This solution is far cheaper than many alternatives because it cuts out the middle-person. You’ll just need to bring your own OpenAI API key.
<h3>✨ Key features</h3>
<ul>
<li>Automatic alt text on upload – set-and-forget accessibility.</li>
<li>Optional automatic image titles – improve SEO with descriptive titles.</li>
<li>One-click manual generation – “Generate Alt Text & Title” button in the Media Library.</li>
<li>Bulk update tool – batch-process existing images (five at a time) with a configurable pause between batches.</li>
<li>Prompt fine-tuning – supply site-wide context and optionally include the image file name.</li>
<li>Image size & detail control – choose the resolution and level of visual detail sent.</li>
<li>No extra servers – data flows only between your site and OpenAI; nothing is stored off-site.</li>
<li>Multilingual output – choose English (UK), English (US) or other popular languages. (English US is the default.)</li>
</ul>
<h3>🧭 Where to find the bulk tool</h3>
<ul>
<li>Tools → Bulk Alt Text Update</li>
<li>Media → Bulk Alt Text Update (shortcut that redirects to the Tools page)</li>
<li>Settings → Alt Text Generator includes a button linking straight to the bulk page</li>
</ul>
<h3>🧠 How it works</h3>
<ol>
<li>When an image is uploaded (or manually chosen), the plugin creates a temporary public URL for that image.</li>
<li>It sends the image – plus optional context such as the parent post title, your custom site context and the file name – to OpenAI’s gpt-4o-mini vision model.</li>
<li>GPT-4o returns a concise description.
<ul>
<li>Alt text is stored in WordPress’ native <code>_wp_attachment_image_alt</code> field. </li>
<li>(Optional) The returned title is stored as the attachment post title.</li>
</ul>
</li>
<li>Nothing is cached or stored on OpenAI’s side; only the final strings live in your database.</li>
</ol>
<h3>Settings overview</h3>
<ul>
<li>OpenAI API Key – Required to connect to GPT-4o. </li>
<li>Image Size to Send – Thumbnail, Medium, Large, or Full. </li>
<li>Image Detail Quality – ‘Low’ or ‘High’. </li>
<li>Site Context – Optional free-form prompt guidance (brand voice, niche, etc.). </li>
<li>Send Image File Name – Include file name in the prompt for extra context. </li>
<li>Automatically Generate Title – Add descriptive titles alongside alt text. </li>
<li>Use full context for image titles – When enabled, title generation includes site context and file name (uses more tokens). </li>
<li>Bulk optimiser delay (seconds) – Pause between five-image batches during bulk runs. </li>
<li>Output Language – Default English (US). Choose English (UK) for British spellings or another popular language; outputs (alt text and titles) will be generated in the selected language.</li>
</ul>
<h3>External services</h3>
This plugin connects to the OpenAI API to generate alt text and (optionally) image titles.
<ul>
<li>Endpoint: <code>https://api.openai.com/v1/chat/completions</code> </li>
<li>When called:
<ul>
<li>On image upload (automatic) </li>
<li>Via “Generate Alt Text & Title” button in Media Library (manual) </li>
<li>Via Tools → Bulk Alt Text Update (bulk) </li>
</ul>
</li>
<li>Data sent: image URL, optional file name, optional site context, optional parent post title </li>
<li>Terms: <a href="https://openai.com/policies/terms-of-use" rel="nofollow ugc">https://openai.com/policies/terms-of-use</a> </li>
<li>Privacy: <a href="https://openai.com/policies/privacy-policy" rel="nofollow ugc">https://openai.com/policies/privacy-policy</a></li>
</ul>

AI Auto Alt Text Generator

Automatically generates alt text and image titles for your WordPress media uploads with GPT-4o mini, improving accessibility and SEO.

James Wilson

OneClickContent – Image Detail Generator automatically enhances your WordPress images with AI-powered metadata creation.
Boost your SEO, improve accessibility, and save hours of manual editing by generating alt text, image titles, captions, and descriptions automatically — powered by OpenAI’s GPT-4o-mini model.
Perfect for bloggers, WooCommerce stores, agencies, and content creators who want smarter, faster SEO without the tedious work.
Key Benefits: 
– SEO Optimization: Boost image rankings in Google Search and Image results. 
– Accessibility Compliance: Meet WCAG and ADA standards with rich alt text. 
– One-Click Simplicity: Instantly generate high-quality metadata in your Media Library. 
– Multilingual Support: Generate details in English, Spanish, French, German, Italian, Chinese, and Japanese. 
– Bulk Editing Support: Process hundreds of images at once — no manual editing needed. 
– No OpenAI Account Required: Powered through the OneClickContent API.
Spend less time writing alt tags — and more time creating.
<h3>Features</h3>
<ul>
<li>Automated Image Metadata: Titles, descriptions, alt texts, and captions generated in one click.</li>
<li>Auto-Generate on Upload: Automatically generate metadata when uploading new images.</li>
<li>Multilingual Generation: Support for 7 languages, with more coming soon.</li>
<li>Free Trial Included: Process up to 5 images for free — no credit card required.</li>
<li>License-Based Usage: Unlock unlimited generation with a OneClickContent license key.</li>
<li>Seamless WordPress Integration: Manage everything inside the Media Library.</li>
<li>Accessibility Enhancements: Improve user experience for screen readers and assistive devices.</li>
<li>Bulk Media Library Editing: Quickly manage multiple images with the Bulk Edit tab.</li>
</ul>
<h3>Transparency</h3>
OneClickContent sends the following data securely to <a href="https://oneclickcontent.com" rel="nofollow ugc">https://oneclickcontent.com</a>: 
– Image Data (either the file or URL) 
– Website URL (for licensing and debugging) 
– License Key (for usage validation)
Data is processed by OpenAI’s GPT models to generate your image details. You do not need an OpenAI account — all AI processing is managed by OneClickContent servers.
<h3>External Services</h3>
This plugin connects to the OneClickContent API to verify license keys and usage limits: 
– Endpoint: <code>https://oneclickcontent.com/wp-json/subscriber/v1/check-usage</code> 
– Data Sent: Subscriber and usage verification information 
– Documentation: <a href="https://oneclickcontent.com/terms/" rel="nofollow ugc">Terms of Service</a> | <a href="https://oneclickcontent.com/privacy/" rel="nofollow ugc">Privacy Policy</a>
<h3>Third-party Libraries</h3>
<ul>
<li>DataTables (with Buttons and HTML5 Export): (v2.2.2, Buttons v3.2.2) used for table display and export functionality. 
Sources:
<ul>
<li><a href="https://github.com/DataTables/DataTablesSrc/releases/tag/2.2.2" rel="nofollow ugc">DataTables GitHub</a> </li>
<li><a href="https://github.com/DataTables/Buttons/releases/tag/3.2.2" rel="nofollow ugc">Buttons GitHub</a></li>
</ul>
</li>
</ul>
<h3>Source Code</h3>
Full source code, including unminified JavaScript files, is available at the <a href="https://github.com/jwilson529/oneclickcontent-images" rel="nofollow ugc">GitHub Repository</a>.
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

OneClickContent – Image Detail Generator

Generate SEO-optimized alt text, titles, captions, and descriptions for your images automatically using AI. Save time, improve accessibility, and boos …

AI Auto Alt Text Generator vs OneClickContent – Image Detail Generator