HTML has evolved significantly since the early days of the World Wide Web. As websites became more advanced, HTML was updated to support new types of content, better document structure, forms, multimedia, accessibility, and web applications.

You may come across terms such as HTML 2.0, HTML 3.2, HTML 4.01, XHTML, and HTML5 when learning about the history of HTML.

Understanding these versions helps explain how modern HTML developed.

Note: Modern HTML is maintained as a continuously evolving standard. The term “HTML5” is still widely used, but modern HTML is not developed as a simple sequence of HTML 6, HTML 7, and so on.

What Are HTML Versions?

HTML versions are different specifications and stages in the development of HTML.

Each major stage introduced, standardized, or improved features that developers could use when creating web pages.

Some important milestones include:

HTML Version	Year	Major Focus
Early HTML	Around 1990	Basic documents and hyperlinks
HTML 2.0	1995	Formalized core HTML features
HTML 3.2	1997	Tables, applets, presentation features
HTML 4.0	1997	Stylesheets, scripting, accessibility
HTML 4.01	1999	Improvements and corrections
XHTML	2000s	XML-based, stricter HTML syntax
HTML5	2010s	Modern web structure, multimedia, forms
Modern HTML	Current	Continuously evolving HTML standard

These dates represent major specification milestones rather than a complete list of every change made to HTML.

Early HTML

The earliest HTML was developed by Tim Berners-Lee around the beginning of the World Wide Web.

Early HTML was designed mainly for structured documents and hyperlinks.

A simple document could contain:

<h1>My Document</h1>

<p>
    This is a paragraph.
</p>

<a href="another-page.html">
    Read another page
</a>

The early web was much simpler than today’s web applications.

There were no modern web applications, complex layouts, or native HTML video players like we commonly use today.

HTML 2.0

HTML 2.0 was published in 1995.

It helped formalize the core features of HTML that were being used on the growing web.

Important capabilities included:

• Headings
• Paragraphs
• Lists
• Hyperlinks
• Forms
• Basic text formatting

Forms were particularly important because they allowed users to send information through web pages.

For example:

<form>

    <input type="text">

    <input type="submit" value="Submit">

</form>

HTML 2.0 helped provide a more standardized foundation for HTML documents.

HTML 3.2

HTML 3.2 was published by the W3C in 1997.

It included and standardized additional features that had become common in web development.

These included:

• Tables
• Applets
• Text presentation
• Images
• Forms

Tables became an important way of presenting structured information.

For example:

<table>

    <tr>
        <th>Name</th>
        <th>Age</th>
    </tr>

    <tr>
        <td>John</td>
        <td>25</td>
    </tr>

</table>

HTML was becoming more capable as websites became more visually and functionally complex.

HTML 4.0

HTML 4.0 was published in 1997.

It introduced important improvements in areas such as:

• Stylesheets
• Scripting
• Frames
• Internationalization
• Accessibility
• Forms

One important change was the increasing separation between content and presentation.

Instead of using HTML primarily to control how content looked, CSS became the preferred technology for presentation.

For example:

<h1 class="title">
    HTML Tutorial
</h1>

CSS could then control the appearance:

.title {
    font-size: 40px;
    text-align: center;
}

HTML described the content, while CSS handled the presentation.

HTML 4.01

HTML 4.01 was published in 1999.

It was a revision of HTML 4.0 that corrected and clarified parts of the specification.

HTML 4.01 became widely used during the early development of modern websites.

During this period, developers commonly worked with:

HTML
+
CSS
+
JavaScript

This combination remains fundamental to web development today.

XHTML

XHTML stands for Extensible HyperText Markup Language.

It was based on HTML but followed stricter XML syntax rules.

For example, XHTML encouraged properly closed elements:

<p>
    Welcome to my website.
</p>

Empty elements were commonly written with a closing slash:

<img
    src="photo.jpg"
    alt="Mountain"
    />

The goal was to encourage cleaner and more consistent markup.

XHTML played an important role in the development of web standards, although HTML eventually became the main direction for the evolving web platform.

What Is HTML5?

HTML5 is the major generation of HTML that introduced many capabilities needed by modern websites and web applications.

HTML5 focused on creating a more capable and meaningful web platform.

Some important areas include:

• Semantic HTML
• Native audio
• Native video
• Improved forms
• Canvas
• SVG integration
• Better document structure
• Web application capabilities

For example, semantic HTML allows developers to describe page sections more clearly:

<header>

    <h1>Web4Learners</h1>

</header>

<nav>

    <a href="html.html">HTML</a>
    <a href="css.html">CSS</a>

</nav>

<main>

    <article>

        <h2>HTML5 Tutorial</h2>

        <p>
            Learn modern HTML.
        </p>

    </article>

</main>

<footer>

    <p>Copyright 2026</p>

</footer>

Elements such as <header>, <nav>, <main>, <article>, and <footer> communicate the purpose of different parts of the document.

HTML5 Semantic Elements

One of the important improvements associated with HTML5 is semantic markup.

Before semantic elements became widely used, developers often created page sections using generic <div> elements:

<div class="header">
    Header
</div>

<div class="content">
    Main Content
</div>

<div class="footer">
    Footer
</div>

Modern HTML can express the meaning more directly:

<header>
    Header
</header>

<main>
    Main Content
</main>

<footer>
    Footer
</footer>

Semantic HTML can make documents easier to understand for developers, search engines, and assistive technologies.

HTML5 Audio and Video

HTML5 introduced native elements for playing audio and video.

Audio:

<audio controls>
    <source
        src="music.mp3"
        type="audio/mpeg"
    >
</audio>

Video:

<video controls width="600">
    <source
        src="video.mp4"
        type="video/mp4"
    >
</video>

Before native HTML multimedia capabilities became common, websites often relied on browser plugins for media playback.

HTML5 made native media elements part of the web platform.

Important: The browser must support the media format you provide. You can provide multiple <source> elements when different formats are needed.

HTML5 Forms

HTML5 added additional input types that help browsers understand the kind of information a form expects.

For example:

<form>

    <label for="email">
        Email
    </label>

    <input
        type="email"
        id="email"
        name="email"
    >

    <label for="birthday">
        Birthday
    </label>

    <input
        type="date"
        id="birthday"
        name="birthday"
    >

    <button type="submit">
        Submit
    </button>

</form>

Other commonly used input types include:

<input type="number">

<input type="tel">

<input type="url">

<input type="search">

<input type="month">

<input type="time">

These input types can provide more appropriate controls and browser-level validation behavior.

HTML5 Canvas

HTML5 introduced the <canvas> element for script-based graphics.

For example:

<canvas
    id="myCanvas"
    width="300"
    height="150">
</canvas>

JavaScript can then draw on the canvas:

const canvas = document.getElementById("myCanvas");

const ctx = canvas.getContext("2d");

ctx.fillRect(20, 20, 100, 60);

Canvas can be used for graphics, visualizations, games, and other interactive experiences.

HTML5 and SVG

HTML documents can also contain SVG graphics.

For example:

<svg width="200" height="100">

    <circle
        cx="50"
        cy="50"
        r="30"
        fill="blue"
    />

</svg>

SVG is useful for scalable vector graphics such as icons, diagrams, and illustrations.

HTML5 and Accessibility

Modern HTML places significant importance on meaningful document structure.

For example:

<nav>
    <a href="home.html">Home</a>
    <a href="about.html">About</a>
</nav>

Using <nav> communicates that the links form a navigation section.

Similarly:

<main>
    <h1>HTML Tutorial</h1>
</main>

indicates the primary content of the page.

Semantic elements can help assistive technologies understand the organization of a document.

HTML5 and SEO

Semantic HTML can also provide useful structure for search engines.

For example:

<article>

    <h1>HTML Versions and HTML5</h1>

    <p>
        Learn how HTML evolved over time.
    </p>

</article>

Clear headings and meaningful semantic elements help communicate the organization of the content.

However, simply using HTML5 elements does not automatically guarantee higher search rankings. SEO also depends on content quality, relevance, technical accessibility, performance, links, and many other factors.

Is HTML5 the Current Version of HTML?

The term HTML5 is still widely used, especially in tutorials, courses, and documentation.

However, modern HTML is maintained differently from older numbered versions.

The WHATWG maintains HTML as a Living Standard.

This means HTML continues to evolve instead of being developed as a simple sequence such as:

HTML5
HTML6
HTML7

New features, clarifications, and changes can be incorporated into the continuously maintained standard.

Note: You do not need to wait for “HTML6” to learn modern HTML. The HTML you learn today is part of the continuously evolving web platform.

HTML Versions Compared

Version	Main Characteristics
Early HTML	Basic documents and hyperlinks
HTML 2.0	Formalized core HTML features
HTML 3.2	Tables, applets, images, forms
HTML 4.0	Stylesheets, scripting, accessibility
HTML 4.01	Revised and clarified HTML 4
XHTML	XML-based and stricter syntax
HTML5	Semantic elements, multimedia, improved forms and modern web capabilities
Modern HTML	Continuously evolving Living Standard

HTML5 vs Older HTML

Feature	Older HTML	HTML5 and Modern HTML
Semantic elements	Limited	Extensive
Native video	Limited	<video>
Native audio	Limited	<audio>
Modern form types	Fewer	More input types
Canvas	Not available	<canvas>
Document structure	Often generic elements	Semantic elements
Web applications	More dependent on external technologies	Broader native platform capabilities
HTML development model	Version-based specifications	Living Standard

Which HTML Version Should You Learn?

If you are learning HTML today, focus on modern HTML.

You should understand:

• HTML document structure
• Elements and attributes
• Headings and paragraphs
• Links and images
• Lists and tables
• Forms
• Semantic HTML
• Audio and video
• Accessibility
• HTML metadata
• Modern browser features

You do not need to memorize every historical feature of older HTML versions.

Understanding the history is useful for context, but modern web development focuses on the current HTML standard.

Frequently Asked Questions

How many versions of HTML are there?

HTML has gone through several major specifications and revisions, including HTML 2.0, HTML 3.2, HTML 4.0, HTML 4.01, and the development of HTML5. Modern HTML is maintained as a Living Standard rather than as a sequence of numbered versions.

What is the difference between HTML and HTML5?

HTML is the markup language used to structure web content. HTML5 commonly refers to the major generation of HTML that introduced many features associated with modern web development, including semantic elements, native multimedia, and improved forms.

What was the first version of HTML?

The earliest HTML was developed around 1990 during the creation of the World Wide Web. It was not originally released as a numbered standard like HTML 2.0.

When was HTML 2.0 released?

HTML 2.0 was published in 1995.

When was HTML 3.2 released?

HTML 3.2 was published in 1997 by the W3C.

When was HTML 4.01 released?

HTML 4.01 was published in 1999.

What is XHTML?

XHTML stands for Extensible HyperText Markup Language. It was based on HTML and XML and encouraged stricter syntax rules.

What are the main features of HTML5?

Important HTML5-era features include semantic elements, native audio and video, additional form input types, canvas, and improvements supporting modern web development.

Is HTML5 still used?

Yes. The features commonly associated with HTML5 are still fundamental to modern web development. However, modern HTML is now maintained as a Living Standard rather than as a fixed numbered version.

Is HTML6 available?

There is no separate official “HTML6” standard that replaces HTML5. Modern HTML continues to evolve as a Living Standard.

Who maintains modern HTML?

The WHATWG maintains the modern HTML Living Standard. The W3C has also played an important historical role in the development and standardization of HTML and other web technologies.

Should beginners learn HTML5?

Yes. Beginners should learn modern HTML, including semantic elements, forms, accessibility, multimedia, document structure, and other features used by today’s websites.

Why was HTML5 important?

HTML5 represented a major evolution of the web platform by providing more meaningful document structure, native multimedia, improved forms, canvas, and other capabilities needed for modern websites and web applications.