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Informations about the package alt-text-checker

Alt Text Checker

TYPO3 extension that adds a warning overlay icon to files in the File List module when the file is missing alternative text, and adds an "Alternative text" column to the file reference tables in the backend.

Requirements

Installation

After installation, clear the TYPO3 cache. No further configuration is required — the extension works out of the box.

What it does

Warning icon in the File List

The extension hooks into TYPO3's icon rendering via the PSR-14 ModifyIconForResourcePropertiesEvent. It adds an overlay-warning icon to any file in the File List module when:

This gives editors a quick visual cue to identify images that need attention before publishing.

"Alternative text" column in reference tables

The extension overrides the backend ElementInformation template to add an Alternative text column to the "References to this item" table. The column shows:

Value Meaning
Yes All file references for this relation have alternative text set
No At least one file reference for this relation is missing alternative text

The column is visible when viewing the info panel of any file in the backend (click the info icon next to a file in the File List).

How to use

  1. Open the File module in the TYPO3 backend.
  2. Navigate to the folder containing your images.
  3. Any image with a yellow warning overlay icon is missing alternative text — either at the file level or in one of its references.
  4. Click the info icon (ℹ) next to a file to open the element information panel.
  5. Scroll to the References section. The Alternative text column shows Yes or No for each relation.
  6. To fix a missing alt text:
    • At file level: Edit the file metadata and fill in the Alternative Text field (sys_file_metadata.alternative).
    • At reference level: Edit the content element or record that references the file and fill in the Alternative Text field on the image relation.

Once all missing alt texts are filled in and the cache is cleared, the warning icon disappears.

Localization

The extension ships with English and German translations. To add your own language, create a translation file.

License

GPL-2.0-or-later

All versions of alt-text-checker with dependencies

PHP Build Version
Package Version
Requires php Version >=8.2
typo3/cms-core Version ^13.4
typo3/cms-extbase Version ^13.4
typo3/cms-fluid Version ^13.4
typo3/cms-backend Version ^13.4
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