Image Alt Tag Checker
Find missing, empty, and duplicate image alt attributes. Free, private, and local-first.
Use Image Alt Tag Checker
Audit pasted HTML for missing, empty, or duplicate image alt text.
Images
2
Missing alt
1
Empty alt
0
Duplicate alt
0
Quick answer
Image Alt Tag Checker is a free online tool that helps you find missing, empty, and duplicate image alt attributes. It runs in your browser, so you can work with development data, text, files, or generated output without creating an account.
About Image Alt Tag Checker
Image Alt Tag Checker helps you find missing, empty, and duplicate image alt attributes. It is designed for focused local-first workflows where you need a quick result without creating an account or sending your input to a server.
Common uses include improving image accessibility, auditing landing page html, checking cms snippets before publishing.
Use the examples, usage notes, FAQ, and related tools below when you need to compare formats, build sample data, validate inputs, or move into the next step of the same workflow.
What this tool does
How to use Image Alt Tag Checker
- 1
Paste HTML that contains image tags.
- 2
Review counts for missing, empty, and duplicate alt values.
- 3
Fix image markup in your source page.
- 4
Run the audit again to confirm improvements.
Examples
Good
<img src="/hero.png" alt="Dashboard screenshot">
Missing
<img src="/logo.png">
Decorative
<img src="/divider.png" alt="">
Use cases
- Improving image accessibility
- Auditing landing page HTML
- Checking CMS snippets before publishing
- Finding duplicate image descriptions
Related workflow
After using Image Alt Tag Checker, many workflows continue with related tools for validation, conversion, cleanup, mock data, or final export.
Privacy and usage notes
CodeVella tools are designed to run locally in your browser. Your input is not uploaded to a server, and no account is required.
Generated test data is intended for development, QA, demos, and safe internal workflows.
Frequently asked questions
Is my data uploaded?+
No. This tool is designed to run locally in your browser.
Do I need an account?+
No signup is required for CodeVella tools.
Should every image have alt text?+
Informative images should have useful alt text. Decorative images can use an empty alt attribute so assistive technology can skip them.
Does this tool download page images?+
No. It only inspects the pasted HTML markup and counts image tags and alt attributes locally.