How to Check If an Image Has Alt Text
Four ways to find out, from a single image to your entire media library.
To check if an image has alt text, right-click the image, choose Inspect and look for the alt attribute inside the <img> tag. A missing attribute means screen readers and search engines get nothing. To check a full page or site, use an accessibility extension, an online checker or a WordPress plugin.
Check the alt text of a single image
Right-click the image
On the page, right-click the image you want to inspect and choose Inspect. Your browser opens its developer tools with the element highlighted.
Find the img tag
In the highlighted line of HTML, look for the alt attribute inside the <img> tag. It reads alt="…" when present.
Read the result
Three outcomes. No alt attribute: the image is invisible to screen readers and search engines. An empty alt (alt=""): the image is declared decorative. A real description: the tag is fine, quality is the next question.
How to check alt text on a website
Checking one image is easy. These four options cover a full page or a whole site, from free and manual to fully automated.
Browser DevTools
Free and precise, one image at a time. Great for a spot check, tedious on a page with dozens of images.
Accessibility extensions
WAVE or axe overlay the page you are viewing and flag every image without alt text. Handy for a visual once-over while browsing.
Online alt text checker
Paste a URL and every image on the page comes back classified, with a quality score from 0 to 100. Nothing to install.
WordPress plugin
Filikod audits the entire media library from the admin, including images no published page shows. Free, rated 5/5 on WordPress.org.
How to check alt text on a website with Moz
Moz Pro’s Site Crawl flags images missing their alt attribute across the pages it crawls, listed alongside the other on-page issues. If you already pay for Moz, it is a convenient way to catch regressions at every crawl.
Two limits to keep in mind. The crawl only sees published pages, so unused images sitting in your media library stay off the radar. And it reports presence, without judging whether the text actually describes the image. A dedicated checker covers those two gaps.
images audited by our checker in 2026
of them had no alt text at all
had at least one alt text issue
domains covered by these audits
Audit your whole media library at once
On WordPress, published pages are only part of the picture: the media library also holds images used by older posts and templates. The free Filikod plugin scans all of it and flags missing alts, generic wording and duplicates.
Every image gets a quality score, so the worst cases surface first. The plugin is rated 5/5 on WordPress.org and has passed 100 active installations.
Frequently asked questions
Fastest route: paste the page URL into our free alt text checker. Otherwise, right-click the image, choose Inspect and read the alt attribute in the code.
alt="" tells screen readers to skip the image. That is correct for decorative images and wrong for anything informative, like a product photo or a chart.
Yes, the browser inspector needs no installation. It just does not scale: on a long page, every image means another right-click.
On WordPress, fill the field under Media, then Library. Past a few dozen images, our guide to bulk alt text in WordPress saves real time.
Another question?
The full FAQ covers the checker, the score, the plugin and how your data is handled.
Check your whole page in ten seconds
Paste a URL and every image comes back classified, with an ALT quality score out of 100.
Alt text audit and bulk management for WordPress. Quality score, bulk fixing, accessibility. Built in France by Lyode.
★★★★★ 5/5 on WordPress.org
Resources
© 2026 Filikod — WordPress plugin licensed under GPLv2.
EN / FR