The Difference Between HTML-Required & ARIA-Required

html required vs aria required
Have you ever encountered a form that appears to obscure the essential information you need to fill in? This can be particularly frustrating for individuals who rely on screen readers or other assistive technologies to navigate the web. In the vast landscape of websites, forms serve as crucial connections between you and your visitors. However, for those using screen readers or other assistive tools, these connections can quickly transform into exasperating obstacles.
Here’s the good news: creating accessible forms is easier than you think.
This blog post delves into the world of form accessibility, specifically focusing on two key attributes that play a vital role in making your forms user-friendly for everyone by simplifying the difference between HTML required and ARIA aria-required.

Understanding HTML required attribute:

The “required” attribute in HTML5 is a powerful feature that allows you to mark certain form fields as mandatory. The HTML required field prompts the browser to enforce the requirement when applied to a form element. If a user tries to submit the form without filling out a required field, the browser will prevent submission and display an error message.
This feature is incredibly useful because it helps to guarantee that users provide all necessary information before they submit a form. As a result, it streamlines the process of collecting data and reduces the need for repeated communication to request any missing details.. Additionally, it enhances the user experience by guiding users through the form-filling process, reducing confusion and frustration. An example of using the “required” attribute is shown below:


<label for=”name”>Name:</label>

<input type=”text” id=”name” name=”name” required>


In this example, the HTML  “required” attribute is applied to the <input> element, making the “Name” field mandatory for form submission.

Understanding ARIA required attribute:

The HTML required attribute is powerful but has limitations when working with custom form elements. ARIA, or Accessible Rich Internet Applications, offers the aria-required attribute to indicate that a non-standard form element is mandatory. This communicates information to assistive technologies, ensuring users are notified when a custom form element is required.
Here’s an example:


<div role=”combobox” aria-required=”true”>

  <label for=”country”>Country:</label>

  <select id=”country” name=”country”>

    <option value=””>Select Country</option>




You should use aria-required when using a non-native input element. A non-native element would use a role attribute, such as role=”button”, to define the element. For instance, if you have a required first name input that is coded using <input type=”text”>, you would use the required attribute. However, if you’re using a custom input element created with JavaScript or CSS, you would add an aria-required attribute to the element to indicate that it’s mandatory.

Difference Between HTML Required and ARIA Required?

HTML required field is built right into the code. When you add it to a form field, modern browsers will prevent the form from submitting if that field is left blank. It’s a simple and effective way to enforce basic validation. However, this doesn’t tell users with screen readers or other assistive technologies which fields are mandatory.

This is where ARIA aria-required steps in. ARIA stands for Accessible Rich Internet Applications, and it’s a set of codes that helps assistive technologies understand your website better. By adding aria-required=”true” to a field, you’re essentially telling those tools that this field is crucial for form submission. This ensures that everyone using your website, regardless of their tools, understands which information is absolutely necessary.

When creating web content, it’s important to ensure that it is accessible to all users, including those with disabilities. One way to achieve this is by using both the HTML “required” attribute and the ARIA “aria-required” attribute in combination. The HTML “required” attribute is used to indicate that a form field must be filled out before the form can be submitted. On the other hand, the ARIA “aria-required” attribute is used to communicate the same requirement to assistive technologies used by people with disabilities.
By utilizing both attributes together, you can make sure that your web forms are technically sound with HTML’s built-in validation features and, at the same time inclusive and clear in communication with ARIA. This approach ultimately creates a more user-friendly experience for all individuals interacting with your web content. By combining these two approaches, you can ensure that your web forms are both technically robust and inclusive for all users, regardless of their abilities.

Impact on Accessibility

In the realm of digital accessibility, the strategic integration of HTML’s ‘required’ attribute and ARIA’s ‘aria-required’ attribute can have a profound impact. By leveraging HTML’s ‘required’ attribute, essential form fields are designated as mandatory, ensuring that users provide the necessary information. This, in turn, offers a clear visual cue to users and enables seamless form validation, enhancing the overall user experience. Importantly, this approach is particularly beneficial for individuals who depend on visual cues for effective navigation within digital interfaces.

Conversely, the ARIA (Accessible Rich Internet Applications) specification includes an attribute called aria-required, which plays a crucial role in enhancing accessibility beyond traditional forms. This dynamic attribute provides essential information to assistive technologies, effectively communicating the need for specific user interactions. By doing so, it contributes to creating a more inclusive digital environment for individuals with disabilities. When paired with other ARIA attributes, aria-required becomes part of a powerful combination that makes digital content more accessible, understandable, and interactive for users with varying abilities.
The implications of this merging are significant, giving rise to a digital environment in which accessibility goes beyond just being a characteristic and instead becomes an essential element of user-focused design. This guarantees that technology is truly accommodating, meeting the varied requirements of every individual.


In today’s rapidly evolving digital landscape, it has become increasingly crucial to prioritize the accessibility of online forms. Ensuring that forms are accessible is not just a best practice, but an imperative step towards creating an inclusive online environment. By harnessing the capabilities of HTML required and aria-required, businesses can develop forms that are user-friendly for individuals with diverse abilities.
However, effectively implementing these attributes can be a multifaceted endeavor. This is where Continual Engine comes into play. We specialize in providing comprehensive digital accessibility solutions tailored to empower businesses in creating inclusive web experiences.

Here's how Continual Engine can make a difference:

  • Automated Accessibility Testing: Our state-of-the-art AI-powered solutions can automatically detect and highlight potential accessibility issues within your forms, such as missing required attributes or the necessity of aria-required for custom elements.
  • Expert Guidance: Our team of seasoned accessibility specialists is dedicated to offering expert advice and support to ensure that your forms are functional and compliant with the latest accessibility standards.
  • Tailored Solutions: We offer a spectrum of solutions customized to meet your specific requirements, ranging from automated tools to continuous accessibility monitoring and remediation services.
By collaborating with Continual Engine, you can rest assured that your forms will not only be functional but also accessible to all users. We can assist you in creating a more inclusive online environment, fostering user trust, and ultimately helping you achieve your business objectives.

Get AI-Driven Accessibility Solutions

Empower your organization with scalable, cost-effective, and efficient tools for an inclusive user experience.


Debangku Sarma

Digital Marketing Associate
Continual Engine

Vijayshree Vethantham

Senior Vice-President, Growth & Strategy
Continual Engine US LLC

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