Alt Text Checker
Analyze image alternative text to determine whether alt attributes are present and populated.
Definition (WHAT)
An alt text checker analyzes image alternative text to determine whether alt attributes are present and populated. It identifies missing, empty, or duplicate alt text values across images.
How to use this tool (HOW)
Enter a page URL or paste HTML markup.
Run the alt text check.
Review detected images and their alt text status.
Recheck after making changes if needed.
Output meaning (INTERPRETATION)
Alt text present
The image includes a non-empty alt attribute.
Missing alt text
The image does not include an alt attribute.
Empty alt text
The alt attribute is present but contains no text.
Duplicate alt text
Identical alt text is used across multiple images.
Tool FAQ
Is this tool free?
Yes. This tool is free to use.
Does this tool save my data?
No. URLs and HTML input are processed in real time and are not stored.
How often can I use this tool?
There are no usage limits.
What this tool checks (SCOPE)
This tool evaluates presence of alt attributes, empty alt values, duplicate alt text usage, and image source reference.
Limitations (E-E-A-T)
This tool checks for the presence and duplication of alt text only. It does not evaluate descriptive quality, accessibility compliance, search rankings, or image relevance.