AltTag CSV Importer is a WordPress plugin that lets you update image alt tags in bulk from a CSV import. It provides a preview of CSV data, an AJAX-powered progress bar, and an undo option to revert changes. The polished, fixed-width admin UI includes consistent thumbnail sizes and a responsive table layout to ensure a professional look on any screen.

A lightweight plugin that sets alt descriptions from a CSV of image links and their alt text.

– Fully Automatic Settings
– Doesn’t Overwrite Existing Description
– Child Image Detection (One Alt per Image Size)
– Snapshot of Existing and Undo Button Available
– Super Fast Execution
– No Intrusive Ads (a dismissible plugin notice only).

License

This plugin is licensed under the GPLv2 or later. For more information, visit https://www.gnu.org/licenses/gpl-2.0.html.

Installation

Upload the entire plugin folder to the /wp-content/plugins/ directory.
Activate the plugin through the ‘Plugins’ menu in WordPress.
Navigate to the “Alt Tag Updater” admin page.
Upload your CSV file (columns: image URL, alt text) to preview the data.
Click “Confirm Import” to update the alt tags. Use the progress bar to track the operation.
If necessary, click “Undo Last Import” to revert the changes.

Frequently Asked Questions

What CSV format is required?

Each CSV row must contain two columns: the first column for the full image URL and the second for the desired alt text.

How does the plugin update alt tags?

It locates the attachment by matching the image URL (using WordPress’ attachment_url_to_postid() function) and updates its _wp_attachment_image_alt meta value.

What happens if an image isn’t found?

If an image isn’t detected, the plugin will display “Child image detected” (if it appears to be an optimized size) or “Image not found” in the status column.

Can I revert the changes?

Yes, the “Undo Last Import” button allows you to revert all changes made during the last CSV import.

I don’t see any changes?

Make sure to empty your WordPress and/or your browser cache after you run the plugin.

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Screenshots

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Changelog

1.0.2

JS Library hotfix

1.0.2

Code improvements and security enhancements
Performance optimizations for better loading
Better compatibility with WordPress standards
Minor bug fixes and code cleanup

1.0.1

Read Me Clarification

1.0

Initial release with CSV preview, AJAX progress, and undo functionality.

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