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#1 Alt Text Checker Tool | Free Image Alt Tags from HTML

Use our Alt Text Checker to find missing alt text on any web page. Analyze image alt tags from HTML for free to improve your website’s SEO and accessibility. Get a full report instantly.

🖼️ Alt Text Checker 🔍

Analyze image alt tags from a web page's HTML for SEO and accessibility.

Alt Text Summary

Category	Count	Status
Analyze content to see summary.

Detailed Image Alt Text Report

Image Source (src)	Alt Text	Status
Detailed results will appear here.

* **CORS Policy:** Browser security prevents direct fetching of content from most external websites via JavaScript. If "Fetch from URL" doesn't work, please use the "Paste Raw HTML" option.
* **SEO & Accessibility Best Practices for Alt Text:** * **Descriptive:** Accurately describe the image content. * **Concise:** Keep it brief, typically under 125 characters. * **Keyword-Rich (Naturally):** If relevant, include target keywords, but avoid keyword stuffing. * **Contextual:** Consider the surrounding text and the image's purpose on the page. * **Decorative Images:** For purely decorative images (e.g., background patterns), use `alt=""` (an empty alt attribute) to tell screen readers to skip them.
* **Disclaimer:** This tool extracts data from the provided HTML. It cannot assess the *quality* or *relevance* of the alt text, only its presence and content.

What is the Alt Text Checker?

This tool is a special helper that looks at the code on a web page and finds all the pictures. For each picture, it checks to see if it has an alt text (also called an alt tag).

Alt text is a short description of an image. It is important for two reasons:

For people: It helps people who are blind or have low vision to understand what an image is about.
For search engines: It helps search engines, like Google, to understand the image so they can rank it in image search.

This tool helps you make sure every picture on your page has alt text.

Why Use This Tool?

Improve Your Website’s SEO: Search engines cannot “see” a picture. The alt text helps them understand what the picture is about. This can help your images and your page rank higher for certain keywords.
Make Your Website More Accessible: Having good alt text is a key part of making a website accessible for everyone. It helps people who use screen readers to have the same experience as everyone else.
It’s a Quick and Easy Audit: Instead of having to look at the code for every single picture, this tool does the work for you and gives you a report in seconds.
It’s Free and Private: This tool is free to use, and your data is never uploaded to our server. This makes it a very safe and private way to work.

How Our Alt Text Checker Works:

This tool is different because it uses the HTML code you paste in. Important: For your safety, web browsers do not let this tool automatically get HTML from any website. This is a security rule called CORS.

You Open a Web Page: You go to the web page you want to analyze.
You Copy the HTML Code: You right-click on the page and choose “View Page Source,” then you copy all the text.
You Paste It into the Tool: You paste the HTML code into the tool’s box.
The Tool Finds All the Images: The tool reads your code and finds every image (<img> tag).
It Checks Every Image: For each image, the tool checks if the alt tag is there. It then puts the images into three groups:
- Good: The alt tag is there and has a description.
- Missing: The alt tag is completely gone.
- Empty: The alt tag is there but has no words in it (alt="").
It Gives You a Report: The tool then gives you a summary of the total images and a list of all the images it found.

What is the Logic Used in This Tool?

This tool uses simple logic built into your web browser. There are no complex math formulas.

HTML Parsing: The tool takes your pasted HTML code and quickly reads it to find all the image tags.
Attribute Check: The tool’s main logic is to find the alt attribute for each image. It checks for the existence of the attribute and then checks if the text inside the attribute is empty or not.

✅ Common Questions in Q&A Format

Q1: How do I get the HTML code to use this tool?
A1: Go to a web page, right-click, and choose “View Page Source.” Then, copy all the code and paste it into the tool.

Q2: What is “alt text”?
A2: Alt text is a short description of an image in your HTML code that helps search engines and people understand what the image is about.

Q3: Is it bad to have missing alt text?
A3: Yes, missing alt text is bad for both SEO and accessibility. You should always try to have alt text for your images.

Q4: Is my code safe?
A4: Yes, your code is completely safe. It is not sent over the internet to any server.

Q5: Can this tool check if my alt text is good?
A5: No, this tool can only check if the alt text is there or not. It cannot tell you if the text is good, bad, or relevant.

Q6: Why can’t I just put in a URL?
A6: For your safety, web browsers do not let a simple tool like this get code from other websites without their permission. This is a security rule called CORS.

Q7: Can this tool check a whole website at once?
A7: No, this tool is for a single web page at a time. It cannot check a whole website.

Q8: Why does the tool show Empty alt text as a separate group?
A8: An empty alt tag (alt=””) is sometimes used on purpose for images that are just for looks and do not need a description. This tool shows you the difference between an empty tag and a missing one.

Q9: What happens if an image does not have an src attribute?
A9: The tool will still find the image tag, but it will not have a source URL to show you. It will still check for the alt text.

Q10: Is SmartxTool’s Alt Text Checker free to use?
A10: Yes, it is a completely free tool.

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Frequently Asked Questions

How can a tool that works "client-side" still check alt text?

The tool does not check the images on the internet. It only checks the HTML code you paste in. It is able to count them and check for the alt attribute in the code.

What is the biggest advantage of a tool that works "client-side"?

The biggest advantage is privacy. Your code stays on your computer, so you don’t have to worry about your data being stored or used by anyone else.

What is the difference between a missing alt tag and an empty alt tag?

A missing alt tag is a mistake that should be fixed. An empty alt tag (alt=””) is sometimes used on purpose to tell a screen reader to skip the image.

Can I use this tool to improve my blog posts?

Yes, it’s a great tool for a blog. It can help you make sure you have good alt text for all your images, which is very important for SEO.

Why is alt text important for SEO?

Alt text helps search engines understand what an image is about. This can help the image show up in image search and can also help the page rank higher for related keywords.

What if I have a lot of images on a page?

The tool will work on a page with a lot of images. It will show you a full report of all the images it found.

How can I write good alt text?

Good alt text is a short, descriptive sentence that explains what the image is about. It should not be a long list of keywords.

Tool Features

The SmartxTool Alt Text Checker is a simple but essential tool for web developers and content creators. This free online tool helps you find missing alt text on a web page, which is crucial for both SEO and accessibility. By using image alt tags from HTML, the tool gives you a detailed report of which images have good alt text, which are missing it, and which have empty alt text. It’s the fastest way to perform a simple seo image audit for any page. The tool works privately on your computer, so your data is always safe.

#1 Alt Text Checker Tool | Free Image Alt Tags from HTML

🖼️ Alt Text Checker 🔍

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Alt Text Summary

Detailed Image Alt Text Report

What is the Alt Text Checker?

Why Use This Tool?

How Our Alt Text Checker Works:

What is the Logic Used in This Tool?

✅ Common Questions in Q&A Format

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Frequently Asked Questions

Tool Features

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