What Is HTML Validator?

An HTML validator is employed while generating HTML code and creating web pages to verify that the code is accurate, legitimate, and adheres to W3C standards for HTML scripting. The HTML validator may examine all HTML markups and flag any that are incorrect or that need to be modified to more closely adhere to W3C standards. Certain HTML validators can also verify the authenticity of XHTML, MathML, and SMIL scripts.

There are several available free HTML validators. Some validators are web-based, which allows the HTML file to be loaded and verified without having to install anything on the computer. Other validators operate by installing the validator software on the computer or by adding a validator plug-in or extension to the web browser.

One of the greatest HTML validators available is the W3C Markup Validation Service since it keeps up with all new and updated HTML standards. By entering the URL of the web page, uploading the HTML file, or copying and pasting the HTML code into the validator, the W3C validator verifies the HTML code.

Thanks to a plugin, Mozilla Firefox users may verify HTML scripting inside the Firefox browser. The Mozilla Addons website is where you may get the extension.

Why Do We Need HTML Validation?

Of course, the most crucial query is, "How crucial is it that my HTML source code is valid?

Thankfully, the response to this is that it is not crucial that the source code passes through the validator without problems. This is because a lot of websites are created automatically using software, such as content management systems like WordPress or desktop tools like FrontPage.

The HTML source code is frequently created by a programme in the background while the page is being built using a visual editor; nevertheless, it is not always easy for these programmes to produce the correct source code.