Blog Utility
Image Alt Checker
Analyze image tags in blog post HTML and quickly check missing alt attributes, empty alt values, and filename-like descriptions.
Enter Body HTML
Paste your blog post body HTML to automatically analyze image tags and alt attribute status.
Check Result
Check the total number of images, alt status, and images that need review.
| No. | Image Path | Alt Text | Status |
|---|---|---|---|
| The check result will appear here. | |||
Help
What is an Image Alt Checker?
The Image Alt Checker is a free blog utility that analyzes img tags in blog post HTML and checks images with missing alt attributes, empty alt values, or weak descriptions.
Supported Features
- Check the total number of image tags
- Detect missing alt attributes
- Detect empty alt values
- Find alt text that looks like only a filename
- Display image paths and alt text in a table
- Copy check results
Useful For
- Checking image SEO before publishing blog posts
- Managing content quality for AdSense approval
- Finding missing image descriptions
- Checking HTML from Tistory, WordPress, and personal blogs
- Improving search engine understanding of images
- Improving accessibility
Why is image alt text important?
Alt text is alternative text that describes what an image contains. It helps search engines understand images and can communicate content when images do not load or when screen readers are used.
How should I write good alt text?
Good alt text briefly and specifically describes the main content of the image. For example, a phrase like “Blog SEO checklist result screen” is better than a filename such as image.png.
Do all images need alt text?
Images that are necessary for understanding the content should have meaningful alt text. Decorative images may use empty alt text, but most images in blog posts benefit from descriptive alt text.
Notice
This tool checks img tags in the HTML code you enter. Images inserted dynamically by JavaScript must be included in the HTML code to be analyzed.