Descrición

The plugin helps content teams easily identify heavy images and check whether they include alternative text (ALT).

We can sort the media library by file size, filter by size, and Alt Text.

Green: Images 100K or less are assigned a good optimization status.
Orange: Images between 100K and 500k are assigned a medium optimization status.
Red: For images of 500k or more, we assign a status of poor optimization.

Thanks to this plugin, we can see if images need to be optimized and improve page load and SEO of images.

More information (in Spanish) about how the plugin works: How to know if we have to reduce weight to the image and Alt SEO attribute

Quick Start

From your server (SSH), move the plugin folder to the plugins directory:

wp-content/plugins/bubuku-media-library/
Activate the plugin via the WordPress admin or using WP-CLI:

wp plugin activate bubuku-media-library
(Optional) Run the bulk action in Media > Library to calculate file sizes for existing images.

EVALUATE RESULTS

Recommended Tools

Lighthouse (in Chrome DevTools) — Analyze image weight and format, as well as the use of alternative text (ALT).
WebPageTest — Check how images affect real-world load times.
Squoosh — Compare visual quality and file size savings when optimizing images.
WAVE Accessibility Tool — Verify whether images are missing ALT attributes or if the alternative texts are descriptive.

Evaluation Guidelines

Identify images without ALT text or with excessive file size before running external tests.
After replacing large images or adding ALT text, repeat your evaluations to confirm improvements.
Evaluate both new and existing content — not only the most recent uploads.
Define an internal size limit (for example, 200 KB per image) and monitor it regularly.
Keep in mind that accessibility also affects SEO and overall user experience.

SUPPORT

Need help or have a suggestion?

Please use the official WordPress.org Support Forum for any issues related to the plugin.

Official Website

For additional information or to get in touch with the development team, please visit our official website.

Like the plugin?

Please leave a 5-star review and help others discover Bubuku Media Library.

ABOUT BUBUKU

We develop custom solutions for WordPress focused on performance, accessibility, and maintainable code. Our work includes plugins, themes, and integrations designed to improve the daily workflow of marketing and content teams.

Capturas

The column where we show the image size information and if it has alt text. We can also sort by size from largest to smallest.
Filter to better identify the images that have the alt text
Filter to identify images with larger or smaller sizes.
Bulk Action to calculate file size.
Plugin settings page
Weekly report that are sent by email with the optimization status of the images and alternative text.
Dashboard widget where the media library summary is displayed.

Instalación

Unzip the plugin ZIP file on your computer.
Copy or move the resulting folder to the “wp-content/plugins/” directory of your WordPress installation.
Log in to the WordPress admin area and navigate to the “Plugins” screen.
Locate “Bubuku Media Library” in the plugins list and click “Activate” to enable the plugin.
(Optional) Go to the plugin settings page to configure report options (weekly, monthly or disabled) and other filters.
Ensure your installation meets the requirements listed in the plugin header (WordPress and PHP versions) before using it in production.

Preguntas frecuentes

What does each color mean?

Green = <= 100KB (good), Orange = 100KB – 500KB (medium), Red = >= 500KB (poor).

How can I recalculate sizes after optimizing images?

Use the “Calculate file size” Bulk Action in the Media Library, or click the recalculate button on individual attachments to update the stored file size.

Can I disable the weekly reports?

Yes — go to the plugin settings page and select the report frequency: Weekly, Monthly or Disabled.

Are generated reports compatible with my language?

The plugin uses WordPress localization files. If your language is available under the languages/ directory, the texts will be displayed in that language when WordPress is configured accordingly.

How can I filter the Media Library by file size?

Use the size filter provided by the plugin in Media Library to select a predefined range or enter custom limits. You can also sort the size column to quickly find the largest or smallest files.

How can I find images that don’t have alt text?

Use the “Alt Text” filter in the Media Library to show items missing alternative text, or sort the Alt column to group empty values together for quick review.

How do I export the report to CSV?

Use the Export / Reports functionality in the plugin and click the “Export CSV” button. The generated CSV contains the following columns: ID, Image Name, Image URL, File Size, Format (MIME type), Alt Text, Image Date (Y-m-d H:i:s), Post Title, Post URL.

Can you show an example CSV row?

Example (CSV columns separated by commas):

123,"my-image.jpg","https://example.com/wp-content/uploads/2024/01/my-image.jpg","256.34 KB","image/jpeg","An example alt text","2024-01-10 12:34:56","Example Post","https://example.com/example-post/"

Which encoding is used and how to open the file in Excel?

The plugin adds a UTF-8 BOM to the CSV for better compatibility with Excel. If Excel shows garbled characters, import the CSV using Excel’s Data From Text/CSV and choose UTF-8 encoding.

Are there any permission or security checks for export?

Yes — the export checks that the current user has the upload_files capability and verifies a nonce (bml_filter_nonce) to prevent CSRF. If the checks fail, the export is blocked.

Comentarios

jurgen89bs 9 de Outubro, 2024

Un plugin que le puede resultar muy interesante a mucha gente. Voy a recomendarlo para que más usuarios puedan conocerlo y utilizarlo 😉

goiblas 26 de Outubro, 2022

Muy útil para gestión del día a día de las imágenes

Chabi Angulo 21 de Outubro, 2022

Un descubrimiento. Es tan necesario este plugin que no lo aconsejaría sólo a los que nos dedicamos a la optimización de WordPress sino incluso a creadores de contenidos, profesionales del SEO, Marketing, etc. etc. Otra arma para mi arsenal.

Paulo Carvajal 19 de Outubro, 2022

A tool that helps outline big images or those that don’t have the alt attribute. Very useful if you are improving a site’s WPO or looking after better accessibility. It does what it says, and it does it right.

Carlos Longarela 19 de Setembro, 2022

Una idea excelente, imprescindible en toda biblioteca de utilidades WPO para la correcta optimización de las webs. Además, tiene aún algunas posibilidades de crecimiento como mostrar en el frontend a los usuarios conectados como admin las imágenes con un outline en caso de no tener definido el alt img:not([alt]) o quizás también leer el tamaño de las imágenes y mostrar los códigos de color según su peso, etc. Como digo, una idea excelente, de un excelente programador.

Ler todas as 5 opinións

Colaboradores e desenvolvedores

“Bubuku Media Library” é un software de código aberto. As seguintes persoas colaboraron con este plugin.

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Rexistro de cambios

1.1.6

Documentation: small README update.

1.1.5

Added CSV export functionality.

1.1.4

Replaced number_format_i18n() with an integer return in calculate_img_alt_empty for a plain alt text count.

1.1.3

Improve performance and simplify SQL queries.
Implemented caching for the calculated number of images by size and those lacking alt attributes.

1.1.2

Added security and performance improvements
Fix some PHP errors.
Compatibility: WordPress 6.8 – WordPress 6.8.1.

1.1.1

fix widget texts
Compatibility: WordPress 6.5 – WordPress 6.5.3.

1.1.0

Add dashboard widget to display media library summary
Remove friendly url functionality in image file names. Gave problems with image optimization plugins.

1.0.9

Remove “Weekly” in informative texts.
Fix image URL in metadata[‘file’].

1.0.8

Default media library reporting was disabled, and modifications were made to the email report texts.
Configuration options for sending the report: weekly, monthly or deactivated.
Fix error when renaming images to lowercase.

1.0.7

Make filename URLs and thumbnail URLs friendly.
Updates image size value when edited.
Add button on image to recalculate size.
Fix API error when WordPress is configured to end with a slash.
Compatibility: WordPress 6.1 – WordPress 6.4.2.

1.0.6

Compatibility: WordPress 6.1 – WordPress 6.3.

1.0.5

Add weekly reports that are sent by email with the optimization status of the images and alternative text.
Add plugin settings page.

1.0.4

Compatibility: WordPress 6.1 – WordPress 6.2.
Fix some PHP errors.
Add WordPress JavaScript dependencies.

1.0.3

Add a Bulk Action to calculate file size in WordPress admin.
Improvements in measurement ranges.
fix: Internationalization Issues.

1.0.2

Rename variables.
Correctly filter by file size.
Styling WordPress Button.

1.0.1

Add calculate message to sort and filter.
Add ‘This media is not supported’ message in the file size column.

1.0.0

Initial release.