🤖 AI-Powered Image SEO for WordPress ⚡ Automatically generate ALT text, captions, titles, and descriptions for every image on your site — powered by AI, in seconds. 🆕 New! SEO-friendly filenames, generated by AI AI SEO-Friendly Filenames – Let AI rename your images with descriptive, SEO-friendly f
PricingFree downloadThe WordPress.org download is free. Pro versions, add-ons or external services may cost extra.
CompatibilityRequires WordPress 5.5 and PHP 7.4.
SourceWordPress plugins · Oct 31, 2026
01 / Source details
Aboutthistool.
🤖 AI-Powered Image SEO for WordPress
⚡ Automatically generate ALT text, captions, titles, and descriptions for every image on your site — powered by AI, in seconds.
🆕 New! SEO-friendly filenames, generated by AI
AI SEO-Friendly Filenames – Let AI rename your images with descriptive, SEO-friendly filenames, with controls for the length, extra context and text to always add before or after the name. Renaming applies only to newly uploaded images or to images not yet used in any published content, so no existing links can break. Reverting the AI data also restores the previous filename.
Links Updated Everywhere – When an image is renamed, every thumbnail is renamed with it and the links inside your posts, pages and page-builder content are updated.
Full WPML & Polylang Compatibility – Every language version of an image gets its own AI Image SEO data, in the right language, and a shared file is renamed only once for all languages.
Full Offload Media Compatibility – AI renaming works with WP Offload Media, even for images stored only in the cloud, and keeps the access permissions of your files.
Before / After Text – Add fixed text before or after the generated ALT tag, caption, description, title and filename for full consistency across your site.
Poor or missing image SEO data hurts your SEO rankings, degrades accessibility, and costs you visitors. The ShortPixel AI Alt Text Generator solves all of this in one lightweight, install-and-forget WordPress plugin.
Whether you’re running a blog, an online store, or a large media-heavy website, this plugin analyses your images with AI and generates accurate, SEO-optimised image data, automatically on upload, or in bulk for your entire library.
💡 Why ShortPixel AI Alt Text Generator?
🧠 AI-Powered Image SEO
Automatically generate ALT tags – The AI analyses each image and writes a relevant, descriptive ALT text, improving both SEO and screen-reader accessibility.
Generate image captions – Create human-readable captions for every image without any manual effort.
Generate image descriptions – Produce rich, contextual descriptions stored in WordPress’s native description field.
Update image titles with SEO-friendly ones – Automatically replace generic image titles with SEO-friendly alternatives.
SEO-friendly filenames – Optionally rename image files to an AI-generated, descriptive name; every thumbnail and the links inside your posts, pages and page-builder data are updated, and existing links stay safe.
⚙️ Smart Settings & Control
Generate image SEO data on upload – Automatically trigger AI generation the moment an image is uploaded to your Media Library, based on your configured settings.
Preserve existing Image SEO data – When enabled, all existing ALT tags, captions, and descriptions are retained. Disabling this option allows AI-generated data to overwrite existing metadata.
Use parent Post / Page title for image SEO data – Optionally pass the title of the image’s parent post or page to the AI model for more accurate, context-aware results.
General site context – Provide a detailed description of your website to give the AI model additional context, resulting in more relevant and targeted metadata.
🌍 Multilingual Support
100+ languages supported – Select the output language for all generated metadata. The AI will produce ALT texts, captions, and descriptions in the language of your choice, making it ideal for multilingual websites.
📦 Bulk Mode
Generate AI Image SEO in bulk for your entire library – Process all images in your WordPress Media Library at once.
Preview mode – Test and fine-tune AI results before applying new ALT texts and descriptions in bulk. Review what the AI generates for a sample of images before committing to a full library update.
🛒 WooCommerce Support
Seamless support for WooCommerce product images.
AI-generated ALT text and descriptions for product gallery images improve product discoverability in search engines.
♿ Accessibility
Improve website accessibility by ensuring all images have properly generated ALT text and metadata.
Helps your website comply with WCAG accessibility guidelines.
External services
This plugin connects to ShortPixel services to validate your API key, check your available quota, generate AI-based image SEO data, and optionally create a ShortPixel account or send deactivation feedback when you choose those actions.
ShortPixel API and AI service
Service: https://api.shortpixel.com/ and https://capi-gpt.shortpixel.com/
Used for: validating your API key, checking available quota, and generating AI image SEO data such as ALT text, captions, titles, and descriptions.
Data sent:
Your ShortPixel API key
The plugin version, and during API key validation the WordPress and PHP versions
A plugin source identifier used by ShortPixel to route plugin-originated AI requests
The image URL that should be analyzed
The ShortPixel remote request ID when retrieving generated results
The generation settings you selected, such as requested fields, selected language, retry flag, and optional site context / parent title data when enabled
For API key validation and quota checks, the site URL, site host/domain, and, when configured by the site owner, HTTP authentication credentials needed to access protected images
When sent:
When you save or validate an API key
When the plugin refreshes account/quota data needed to operate
When you manually request AI generation, enable automatic generation on upload, or run bulk generation
Why it is needed:
The plugin cannot validate your account or generate AI-based image SEO data without contacting ShortPixel’s remote services
Used for: sending feedback if you choose to submit a deactivation reason.
Data sent:
The plugin name and version
The selected deactivation reason
Any feedback text you enter
Your email address and name only if you explicitly choose the non-anonymous feedback option
When sent:
Only when you submit the deactivation feedback form
Why it is needed:
To deliver the feedback you explicitly chose to send to ShortPixel
Terms of Service: https://shortpixel.com/tos Privacy Policy: https://shortpixel.com/privacy
See it in action
Screenshots & previews.
Account & Settings – Account area, upload behaviour and data preservation – Configure whether SEO data is generated automatically on upload and whether existing metadata is preserved.AI Image SEO – Choose which fields to generate (ALT tag, caption, description, title) and provide a general site context for improved AI accuracy.ShortPixel AI Alt Text Generator screenshot 3ShortPixel AI Alt Text Generator screenshot 4
02 / Source details
Gettingstarted.
01Upload the shortpixel-ai-alt-text-generator-text folder to the /wp-content/plugins/ directory, or install directly through the WordPress plugin directory.
02Activate the plugin through the Plugins menu in WordPress.
03Go to Settings → ShortPixel AI Alt Text Generator and enter your ShortPixel API Key or create an account.
04Configure which metadata fields to generate (ALT tag, caption, description, title).
05Optionally add a general site context description to improve AI output.
06Choose your preferred output language.
07Enable Generate image SEO data on upload to start generating metadata automatically, or use Bulk Mode to process your existing library.
Don’t have an API key? Get one for free! .
03 / Source details
Frequently asked questions.
Do I need a ShortPixel account to use this plugin?
Yes, you would need a ShortPixel API Key. You can create a free account and get started immediately.
Will this plugin overwrite my existing ALT text?
Only if you allow it to. The Preserve existing Image SEO data setting ensures that any existing ALT tags, captions, and descriptions are kept intact. Note that WordPress always stores an image title, so the title field may still be updated even when preservation is enabled.
Can I review AI Image SEO results before applying them?
Yes. Use Preview mode to test and fine-tune AI results on a sample of images before running a bulk update across your full Media Library.
What languages are supported?
The plugin supports over 100 languages. You can select your preferred output language from the settings page under the Language dropdown.
Is WooCommerce supported?
Yes. The plugin seamlessly handles WooCommerce product images, including product gallery images.
Can I use this on a large Media Library?
Yes. Bulk mode is designed to process large libraries efficiently. For best results, combine bulk mode with preview mode to validate output before committing to a full run.
What happens if I disable “Preserve existing Image SEO data”?
The AI-generated SEO data will overwrite any existing ALT tags, captions, and descriptions. Use this option carefully if you have manually written metadata you want to keep.
Will renaming an image break links to it?
Links inside your site are safe: when an image is renamed, every thumbnail is renamed with it and the links in your posts, pages and page-builder content are updated. To avoid breaking anything else, the AI renames only newly uploaded images or images that are not yet used in any published content. Links from outside your site – search engine results, other websites, cached copies – still point at the old filename, because no redirect is created. Reverting the AI data with “Revert AI SEO data” also restores the previous filename, the metadata and the links inside your site, but it cannot restore external links either, for the same reason. Read more about renaming .
Does the plugin use my server’s resources for AI processing?
No. All AI processing is performed via the ShortPixel Cloud, so your hosting resources are unaffected.
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