What is the Image Alt Text Checker?
Alt text describes an image for screen-reader users and helps Google understand your pictures – it is a simple but important SEO and accessibility win. Paste the HTML of a page (or your post content) and the checker lists every image with its alt text and flags problems: missing alt, empty alt on important images, file-name alts like “IMG_1234”, very long alts and duplicates.
How to use the Image Alt Text Checker
- Open your page, right-click and choose View page source, then copy all (or copy your post HTML).
- Paste it here and press Check images.
- Fix the flagged images in your CMS (in WordPress: Media Library → Alternative Text).
Writing good alt text
- Describe the image in 5–15 words: “Red running shoes on a wooden floor”.
- Include a keyword only if it fits naturally.
- Decorative images can use empty alt="" – that is correct.
- Don’t start with “image of” or “picture of”.
This Image Alt Text Checker is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech