Image Alt Text Checker
Find images with no alt attribute, and tell the difference between a missing one and a deliberately empty one.
- 100% free
- No sign-up
What is Image Alt Text Checker?
Every <img> needs an alt attribute, but not every image needs a description.
An image that carries meaning needs alt text saying what it conveys; an image that is purely decorative needs alt="", which tells a screen reader to skip it entirely. Those two are opposites, and a checker that reports them the same way sends people off to write alt text for spacer graphics. This one keeps them apart: a missing attribute is a defect, an empty one is a decision. It also flags the alt text that is really a filename, because "hero-2.png" announced aloud is worse than silence.
How to use Image Alt Text Checker
- 1
Fetch or paste
Enter a URL, or paste the HTML.
- 2
Fix the missing attributes first
Those are the images a screen reader has to guess at, usually by reading the file path aloud.
- 3
Decide meaning or decoration
If the image carries information, describe the information. If it does not, alt="" is the correct answer, not a cop-out.
- 4
Rewrite filename alt text
An alt of "IMG_4021.jpg" is technically present and practically useless.
Everything this tool
does for you
- Missing vs decorative alt kept distinct
- Lists the failing images by filename
- Filename-as-alt-text detection
- Counts decorative images separately
- Reads a live URL or pasted HTML
- Free, no signup, no daily limit
Further reading
Related free tools
Frequently asked questions
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- Separates missing alt from decorative alt=""
- Names the images that need fixing
- Catches alt text that is just a filename
- Explains what a screen reader actually announces
- Free, no account, no daily limit