MatterWP Organization

MatterWP Engineering

Atakan Oz

Alter is a lightweight yet powerful WordPress plugin that transforms how you manage image attributes in your media library. Whether you’re an accessibility-conscious developer or a content manager looking to maintain high-quality image metadata, Alter provides the tools you need to efficiently manage alt text and captions across your media library.
⚡️ Powerful Filtering
<ul>
<li>Filter images with or without alt text</li>
<li>Filter images with or without captions</li>
<li>Quick visual indicators for attribute status</li>
<li>Instant filtering without page reload</li>
</ul>
🎨 Enhanced Media Library
<ul>
<li>New columns for alt text and caption status</li>
<li>Visual indicators for present/missing attributes</li>
<li>Tooltip preview of existing alt text and captions</li>
<li>Clean, intuitive interface integration</li>
</ul>
🛡️ Built for Professionals
<ul>
<li>Lightweight implementation</li>
<li>No external dependencies</li>
<li>Compatible with the latest WordPress versions</li>
<li>Perfect for:
<ul>
<li>Content managers</li>
<li>Accessibility compliance</li>
<li>SEO optimization</li>
<li>Media library organization</li>
</ul>
</li>
</ul>
🔒 Performance & Security
<ul>
<li>Built following WordPress security best practices</li>
<li>Properly escaped and sanitized output</li>
<li>Minimal server resource usage</li>
<li>Clean, validated code output</li>
</ul>
Get started in minutes and take control of your media library’s accessibility and organization. Alter is the perfect solution for developers, content managers, and site owners who prioritize proper image attribution and accessibility compliance.

Alter Media – Image Alt Tag and Caption Detector

Enhance your WordPress media library with powerful filtering and management tools for image alt text and captions.

Nicolas Juen

Jason Rouet

Milan Ricoul

The Mediapapa Team

Stéphane Godel

Mediapapa is the effortless WordPress media library manager. It gives you full visibility into where and how your media files are used across your site, helping you organize, optimize, and maintain a healthy media library. Mediapapa manages images, videos, audio, and documents in one place.
Most WordPress sites accumulate thousands of media files over time: duplicates, unused media, missing metadata, and oversized images. Previously, you needed multiple plugins to understand and manage your media library. Mediapapa replaces them all.
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<h4>Know Where Every File Is Used</h4>
This is Mediapapa’s core feature: comprehensive usage detection across your entire site.
The foundation of safe media management is knowing where your files actually appear. Mediapapa scans your entire WordPress site with high-precision detection to show you exactly where each media file is used: posts, pages, Gutenberg blocks, Elementor sections, custom post types, custom fields, widgets, and navigation menus.
This comprehensive usage tracking makes everything else safe. You will not accidentally delete a media file that is still in use. You can confidently identify unused files and understand the full impact before taking any action.
<h4>Complete Media Library Intelligence</h4>
Media Score 
Every media file receives a Media Score based on storage optimization, accessibility, SEO, and performance. Your entire library receives a Library Health rating, making it easy to track improvements over time.
Usage Detection 
Mediapapa detects usage across all media types and content sources: images, videos, audio files, and documents in Gutenberg blocks, Elementor, Classic Editor, custom post types, custom fields, widgets, and navigation menus.
Duplicate Detection 
Automatically identifies duplicate images and shows you which one is the reference version. See which duplicates are safe to remove without breaking your site. No more wasted storage from identical files uploaded multiple times.
Unused Media Detection 
Identify every media file that is not referenced anywhere on your site. Review the full list before deciding what to clean up. Nothing is deleted without your explicit confirmation.
Metadata Analysis 
Find missing alt text, titles, and captions that hurt your SEO and accessibility. Get clear guidance on what needs attention and why it matters.
Image Optimization Recommendations 
Detect oversized images, inefficient formats, and missing compression. Get recommendations you can act on to improve your site’s performance.
Smart Library Organization 
Filter and organize your media library by health status, usage, duplicates, or optimization needs. Find what matters without risking accidental changes.
Media Tagging System 
Assign multiple tags per media file and filter the library with smart search suggestions. Organize large libraries with tagging and search.
<h4>Built for Safety and Full Control</h4>
Mediapapa analyses your media and lets you act manually with full control. You decide what to clean, optimize, or keep. This makes it ideal for auditing media libraries, planning cleanups, and understanding your WordPress media before taking action.
No files are modified or deleted without your explicit confirmation.
When you need bulk actions, AVIF conversion, and automated size optimization, Mediapapa Pro handles that.
<a href="https://www.wp-mediapapa.com/pricing/?utm_source=wp-org&utm_medium=plugin-description&utm_campaign=upgrade" rel="nofollow ugc">Upgrade to Mediapapa Pro →</a>
<h4>What You Get for Free</h4>
Mediapapa Free is a complete WordPress media library manager at no cost:
<ul>
<li>Complete usage tracking across your entire site</li>
<li>Duplicate detection with reference file identification</li>
<li>Unused media detection with full preview before cleanup</li>
<li>Media Score and Library Health analysis for accessibility, SEO, and performance</li>
<li>Image optimization recommendations for file size and format</li>
<li>Metadata writing tools with improved Media Library and Gutenberg interfaces</li>
<li>Manual cleanup actions with full control</li>
<li>Anti-duplication checker when adding new media</li>
<li>Library filtering and smart organization tools</li>
<li>AI-powered metadata generation (with credits purchase): auto-generate SEO-friendly alt text, titles, and captions</li>
<li>Compatible with Gutenberg, Elementor, Classic Editor, custom post types, and custom fields</li>
</ul>
<h4>Mediapapa Pro</h4>
Designed for freelancers maintaining client sites, agencies auditing media across projects, and e-commerce stores managing large product image libraries.
<ul>
<li>Bulk Operations: delete unused files and remove duplicate images in bulk, with safety checks throughout</li>
<li>Unlimited Image Optimization: compression and AVIF conversion via the Mediapapa API with no monthly quotas or usage limits</li>
<li>WP-CLI: command-line tools for indexing, scoring, optimization, duplicates, and media replacement</li>
<li>WordPress Multisite: analyse and manage media libraries across your entire network</li>
<li>Scheduled Indexing: automate library indexing on a schedule</li>
<li>Priority Support: dedicated response times through your account dashboard</li>
</ul>
<a href="https://www.wp-mediapapa.com/pricing/?utm_source=wp-org&utm_medium=plugin-features&utm_campaign=upgrade" rel="nofollow ugc">Compare Free vs Pro →</a>
<h4>Who Uses Mediapapa</h4>
WordPress site owners who have accumulated years of uploads and want to understand what is safe to remove before running a cleanup.
Freelancers and agencies who audit and optimize client media libraries as part of a site handover or performance review.
E-commerce stores managing large product image libraries where duplicates and oversized images directly affect page speed and storage costs.
Content teams publishing regularly who need confidence that deleting an old image will not break a page built three years ago.
<h4>Privacy and Safety</h4>
Mediapapa analyses your media locally on your server. Core features (usage tracking, duplicate detection, health scoring, optimization recommendations) run entirely on your server with no data sent externally. The free version’s AI-powered metadata (opt-in) sends image data to the Mediapapa API only when you explicitly request metadata generation. Mediapapa Pro adds optimization and AVIF conversion via the API: you choose when to use these features. See the FAQ section for full details on external services and data handling.
<h4>Documentation and Support</h4>
Help other WordPress users find Mediapapa by <a href="https://wordpress.org/support/plugin/mediapapa/reviews/#new-post" rel="ugc">leaving a 5-star review</a>.
Support: Free plugin support is available via <a href="https://wordpress.org/support/plugin/mediapapa/" rel="ugc">WordPress.org forums</a>. Mediapapa Pro customers receive priority support through their account dashboard.
<ul>
<li><a href="https://help.wp-mediapapa.com/en/?utm_source=wp-org&utm_medium=plugin-description&utm_campaign=documentation" rel="nofollow ugc">Documentation and user guide</a></li>
<li><a href="https://roadmap.wp-mediapapa.com/?utm_source=wp-org&utm_medium=plugin-description&utm_campaign=roadmap" rel="nofollow ugc">Public roadmap and feature requests</a></li>
</ul>

Mediapapa – Your WordPress Media Library Manager & Copilot


I've been using Mediapapa on a few websites and it quickly became my go-to for WP media cleanup. The usage scanner shows where each file appears in posts, Gutenberg, Elementor and custom fields, and the Media Score plus optimization tips make it easy to know what to fix first.



The "Prevent duplicated image to be uploaded" feature alone stopped dozens of needless uploads and saved storage immediately. The duplicate detector also highlights a safe reference file, unused media detection is thorough, and the metadata suggestions help with accessibility and SEO.



I haven't tried the AI features yet, but knowing the plugin is built by one of France's top WordPress agencies reassures me about its quality.



Also, the UI and branding is polished and well thought out. Good job guys!


The plugin we were all waiting for


That kind of plugin is a mu-plugin, yes, must-use. I had several duplicated media because of languages etc, this plugin saved me from filling up my hdd. Also, the googly eyes.


Should be in core


The media library is often the bottleneck for clients with a lot of images to handle. Mediapapa brings clarity, avoids double images and tedious searches.



A must have for big sites but also for small websites with a lot of images.


Clean library, clean mind


I've started by testing the Pro version discovered during the WordCamp Toulouse.I'm now testing the free version which sounds great too.Keep the good job !


First tested the pro version, good to see a free version


Ça fait des années qu'on jongle avec des plugins pour gérer correctement sa médiathèque WordPress. Mediapapa est exactement ce qu'il manquait : une vision complète de l'utilisation de chaque fichier, la détection des doublons, le scoring qualité… tout au même endroit. Un vrai manque comblé. Merci à l'équipe pour ce travail.


Le plugin qu'on attendait depuis des années


Really reliable plugin; a serious problem, handled the right way.


Solid

WordPress media library manager: track usage, find duplicates, remove unused files, fix metadata and optimize images. Free.

Alter Media – Image Alt Tag and Caption Detector vs Mediapapa – Your WordPress Media Library Manager & Copilot