OpusDesk Hub What this tool does
Inspect image alt attributes in pasted HTML. A local regular expression finds img tags in the supplied string and reads quoted or unquoted attributes. Missing, empty and supplied alt values are reported separately, with presentation/hidden markers considered. The checker sees only the markup you pasted and does not parse or fetch a live page.
How to use Alt Text Checker
- Prepare the input. Paste the HTML containing image tags.
- Run or configure the tool. Select Check Images.
- Check and use the output. Review missing/empty values in their page context and write useful descriptions where needed.
How this tool works
A local regular expression finds img tags in the supplied string and reads quoted or unquoted attributes. Missing, empty and supplied alt values are reported separately, with presentation/hidden markers considered. The checker sees only the markup you pasted and does not parse or fetch a live page.
Worked example
Input: <img src="a.png" alt="QA scene"><img src="b.png">
Output: The first image has supplied alt “QA scene”; the second has Missing alt.
Limits, assumptions and interpretation
It cannot determine whether a description accurately conveys the image or its purpose.
- Empty alt can be appropriate for a decorative image; the warning needs contextual judgment.
- Regular-expression inspection can misread complex or malformed markup. CSS backgrounds, unpasted lazy markup and accessibility tree behavior are outside this inspection.
- This is not an accessibility certification or a visual image-description generator.
Supported inputs and limits
- <img src="a.png" alt="QA scene"><img src="b.png">
- It cannot determine whether a description accurately conveys the image or its purpose.
- Empty alt can be appropriate for a decorative image; the warning needs contextual judgment.
- Regular-expression inspection can misread complex or malformed markup. CSS backgrounds, unpasted lazy markup and accessibility tree behavior are outside this inspection.
- This is not an accessibility certification or a visual image-description generator.
Frequently asked questions
What does this tool actually do?
A local regular expression finds img tags in the supplied string and reads quoted or unquoted attributes. Missing, empty and supplied alt values are reported separately, with presentation/hidden markers considered. The checker sees only the markup you pasted and does not parse or fetch a live page.
What should I check before using the result?
It cannot determine whether a description accurately conveys the image or its purpose. Empty alt can be appropriate for a decorative image; the warning needs contextual judgment. Regular-expression inspection can misread complex or malformed markup. CSS backgrounds, unpasted lazy markup and accessibility tree behavior are outside this inspection. This is not an accessibility certification or a visual image-description generator.
Is information sent to a server?
Tool inputs are processed in this browser. This product does not use analytics or send your input to an external API. Clicking an external website link still visits that website.