ShortPixel AI Alt Text Generator

🤖 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

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

ShortPixel account sign-up service

com/free-sign-up-plugin

Used for: creating a ShortPixel account and issuing an API key when you explicitly request one from the plugin.

Data sent:

• Your email address

• The plugin version

• Your IP address

When sent:

• Only when you submit the “request new key” action from the plugin settings

Why it is needed:

• ShortPixel must create your account and return an API key

ShortPixel deactivation feedback service

php

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

com/tos

com/privacy