Global 'Missing Alt Text' Wikipedia Image Decay
How many Wikipedia images still lack accessibility alt text—and whether the problem is getting better or worse.
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About this data
This page tracks how many images on Wikipedia are missing alt text, the percentage of images affected, and how the count changes each day. The data comes from regular scans of Wikipedia’s image database, checking which files have no accessibility description. It shows whether Wikipedia is becoming more or less accessible over time, highlighting gaps in compliance with its own standards. No other public source systematically monitors this decay across all images.
Why this isn't published anywhere else
While there are discussions, tools, and research on alt text accessibility in Wikipedia, none of the sources provide a systematic, ongoing tracking of missing alt text decay across all images. The linter tool tracks errors but does not publish decay trends.
Uniqueness score 0.90 — assessed against live web search results when this subject was created.