<img src="team.jpg">A screen reader may announce the filename. Review the image's purpose and add an appropriate alt attribute.
Free image SEO tool
Image Alt Text Checker
See every image on a page, find missing or weak alt text, and draft fixes while the image is in view.
Check a page
One page at a time, up to 150 images. Showing a sample until you check your own page.
Report
0 of 0 images ready
A quick workflow
How do you check image alt text on a web page?
Enter a public page URL, run the check, then review each image beside its current alt attribute. Fix missing descriptions for informative images, keep intentionally empty alt attributes for decorative ones, and export your list of changes.
- Add your pageUse a public URL, or paste HTML if the page is private or still in draft.
- Review the image's jobLook at its link and nearby text. Does it add information, perform an action, or only decorate?
- Write and exportDraft concise replacement text in each result, then take the CSV to your editor or developer.
The basics
What is alt text?
Alt text is a short written description of an image, added in the alt attribute of the image's HTML. Screen readers read it aloud to people who can't see the image, browsers show it when an image fails to load, and search engines use it to understand what the image shows.
One small markup difference
What is the difference between missing and empty alt text?
An image with no alt attribute is missing an important accessibility decision. An image with alt="" has an intentionally empty alternative, which is appropriate when the image adds no information and has no function.
<img src="swirl.svg" alt="">The ornament is skipped by assistive technology. Keep the empty attribute if it carries no meaning.
An empty alt is a decision to confirm, not an automatic error.
Write for the image's purpose
How do you write useful alt text for an informative image?
Describe the information the image adds in this page's context. Use plain language, avoid repeating nearby text, and skip “image of” unless the medium itself matters. There is no universal character limit; be as brief as the meaning allows.
For a product photo, name the distinguishing feature readers need. For a screenshot, describe the state or control the screenshot demonstrates. If the same information is already in nearby text and the image adds nothing, an empty alt may be better.
Examples
What does good alt text look like?
Good alt text says what the image adds to this page, in a short plain sentence. The same photo can need different alt text on different pages, because what matters depends on why it's there.
| Image | Weak | Better |
|---|---|---|
| Product photo | alt="boots" | alt="Brown leather hiking boots with red laces" |
| Linked logo | alt="logo" | alt="Trailhead Outfitters home" |
| Chart | alt="chart" | alt="Bookings rose every month from March to June" |
| Search icon button | alt="" | alt="Search" |
| Team photo | alt="IMG_2039.jpg" | alt="Our five-person support team outside the Leeds office" |
| Decorative divider | alt="decorative swirl line" | alt="" |
Beyond regular photos
What should linked images, buttons and charts say?
An image that is the only content of a link or button needs an accessible name that tells people what happens next. A chart needs its takeaway in text, with detailed data available nearby when the detail matters.
Describe the destination
For a linked logo, “Pineable home” is more useful than “logo.” If the link already has clear visible text, the image may use alt="".
Name the action
A search icon used as a button should be announced as “Search,” whether through alt text or another accessible label.
State the takeaway
Give a short summary in alt text and put complex numbers or relationships in adjacent text or a data table.
Image search context
Does image alt text help SEO?
Descriptive alt text helps search engines understand an image alongside the page around it. It also helps people when an image cannot be seen. Use it to describe the image accurately, not to repeat keywords or force a ranking phrase.
Keep the page title, nearby copy, caption and image filename aligned with the actual subject. To check how target terms appear elsewhere on your page, use Pineable's Keyword Checker.
What this report covers
Which image problems can this checker find?
The checker reads <img> elements in one page's HTML. It finds missing attributes, prompts you to review empty ones, and flags likely weak descriptions such as filenames, vague words, repeated phrases and unusually long text.
Included
Image-by-image previews, alt attributes, link or caption context, review labels, editable drafts, filters and CSV export.
Needs a separate check
CSS background images, images injected after load by JavaScript, and whether a description truly matches the visible image. Paste rendered HTML for dynamic pages.
FAQ
What else should you know about image alt text?
The fastest audit is still a human review with the image and its page context in front of you. These answers cover the decisions that automated checks cannot make for you.
Is an empty alt attribute an error?
No.
alt="" is right for an image that adds no information and has no function. The report asks you to confirm that intent.Can this tool tell whether alt text is accurate?
No automated checker can reliably know an image's purpose from markup alone. Pineable shows each image and context so you can make that decision.
Does the checker include images added by JavaScript?
A URL scan reads the returned HTML, so images added later by JavaScript or CSS may be missed. Paste rendered HTML to inspect those images.
How can I see the alt text on a website?
Enter the page address above to list every image with its alt text. In Chrome or Edge, you can also right-click an image, choose Inspect, and look for the
alt attribute in the highlighted HTML.Does Pineable store the page or my draft alt text?
No. A public URL is fetched temporarily to read its HTML. Pasted markup and draft descriptions are processed in your browser and are not saved.
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