Dec 02, 2025
Domantas G.
10min Read
HyperText Markup Language (HTML) is the most widely used markup language for creating web pages and applications. It comprises predefined elements and tags for labeling content pieces and describing the structure of pages.
We’ll go over the difference between HTML and HTML5 as well as the advantages of HTML5 for developers and end-users. In addition, we will answer the most frequently asked questions about HTML5 and provide an HTML5 cheat sheet to make the learning process easier.
Let’s get started.
HTML is the primary language of the World Wide Web (WWW). Developers use it to design web page elements, such as text, hyperlinks, and multimedia files.
HTML 5.2, upgraded in 2017, is the latest version of HTML. Check out the graphic below for more historical HTML milestones.
Download complete HTML cheat sheet
HTML works by using various tags, including those for headings, tables, and paragraphs, to define the text structures. Each tag is defined using the <A> and </A> formula. They are called an “opening” and “closing” tag, respectively.
For example, we might use <i>type your text here</i> to change the text style to italic. The browser will render the content via these tags, then display it on the screen.
Note that this language works only statically, so one cannot create a dynamic or interactive web page feature using HTML. It only modifies the static elements of a web page, such as the content header, footer, and image position.
To build an interactive website, you need to combine HTML with at least two front-end languages: Cascading Style Sheet (CSS) and JavaScript.
HTML5 is the latest version of HyperText Markup Language, which supports multimedia, tags and elements, improved document markups and new APIs.
Both HTML and HTML5 are hypertext markup languages, primarily used to develop web pages or applications. HTML5 is the latest version of HTML and supports new markup language functionalities such as multimedia, new tags and elements as well as new APIs. HTML5 also supports audio and video.
| HTML | HTML5 |
| HTML does not provide native audio and video support. | HTML5 provides native audio and video support. |
| HTML only supports vector graphics if used in conjunction with different technologies like Flash, VML, or Silverlight. | HTML5 supports SVG (Scalable Vector Graphics), Canvas, and other virtual vector graphics. |
| HTML allows inline MathML and SVG in text with restricted use. | HTML5 allows inline MathML and SVG in text |
| HTML doesn’t allow users to draw shapes such as circles, triangles, and rectangles. | HTML5 allows users to draw shapes such as circles, triangles, and rectangles. |
| HTML only uses browser cache and cookies to store data temporarily. | HTML5 uses web SQL databases, local storage, and application cache for storing data temporarily. |
| JavaScript and browser interface run in the same thread. | JavaScript and browser interface run in separate threads. |
| Longer document type declaration. | Shorter document type declaration. |
| Longer character encoding declaration. Uses the ASCII character set. | Shorter character encoding declaration. Uses the UTF-8 character set. |
| Compatible with almost all browsers. | Only compatible with newer browsers, considering there are many new tags and elements which only some browsers support. |
| Built based on Standard Generalized Markup Language (SGML). | HTML5 has improved parsing rules providing enhanced compatibility. |
In addition to the features in the table above, HTML5 has seen the following changes:
HTML5 was created to improve the WWW experience and give web developers more flexibility when designing websites. In this part of the article, we’ll go over the significant improvements introduced by the new version.
Most major browsers have the support to parse structurally or syntactically incorrect HTML code. However, until a few years ago, there was no standardized process to handle this.
This means that browser developers had to perform malformed HTML document tests in different browsers to create improved error handling processes through reverse engineering.
The consistent error handling in HTML5 has made a massive difference in this regard, with the improved parsing algorithms used in HTML5 saving a large amount of both money and time.
Improvements have been made to the semantic roles of various existing elements in HTML to enhance code insinuation.
Section, article, nav, and header are the new elements replacing some obsolete div elements. Since the elements are more straightforward, the process of mistake-scanning becomes less complicated.
One of the primary goals of HTML5 is to allow web browsers to function as application platforms. Thus, it provides developers with enhanced control of their websites’ performance.
In the past, developers had to use workarounds because many server-side technologies and browser extensions were not present.
Currently, there is no need to employ any JavaScript-based or Flash workaround as previously done in HTML4 because there are elements in HTML5 providing all the functionalities.
The smartphone-owning demographic has constantly been growing over the past decade, facilitating the need to improve HTML standards.
End-users want to be able to access web resources at any time via any mobile device. In other words, a mobile-friendly website is a requirement.
Luckily, HTML5 is more mobile-friendly compared to its previous versions as it caters to mobile devices like tablets and smartphones.
One of the most exciting features of HTML5 is the <canvas> element for drawing various graphics components, such as boxes, circles, text, and images.
However, it is worth mentioning that the <canvas> element is merely a graphic container. Thus, to define the graphics, a script has to be executed. Here is an example where JavaScript is used in conjunction with the element:
<canvas id=”TestCanvas” width=”200″ height=”100″></canvas> var c = document.getElementById(“TestCanvas”); var context = c.getContext(“2d”); context.fillStyle = “#FF0000”; context.fillRect(0,0,140,75);
The newly added <menu> and <menuitem> elements are components of the interactive element specifications.
These two items can be used in web development to ensure enhanced web interactivity. The <menu> tag represents menu commands in mobile and desktop applications for simplicity purposes. One possible usage of the menu tag is:
<body contextmenu=”new-menu”>
<menu id=” new-menu” type=”context”>
<menuitem>Hello!</menuitem>
</menu>
</body>While it is possible to add custom attributes to the older versions of HTML, it’s risky. Custom attributes can sometimes stop a page from rendering completely in HTML4 and cause incorrect or invalid documents.
Fortunately, the data-* attribute in HTML5 has brought an end to this problem.
This attribute’s primary objective is to store extra information about different elements. There are also other uses for this attribute, such as styling CSS elements or accessing an element’s data attribute via jQuery.
Custom data can now be included, giving developers the chance to make engaging and efficient pages without introducing complicated server-side lookups or Ajax calls.
HTML5 uses web storage or local storage to replace cookies. In the older HTML version, if developers wanted to store anything, they had to use cookies that hold a small amount of data – only around 4 KB.
However, cookies have several disadvantages – they can expire, restrict the use of complex data as they only allow string variables, and slow down performance by carrying additional scripts to the server.
By comparison, the local storage allows data to be stored permanently on the client’s computer unless the user erases it. It also features bigger data storage – at least 5 MB – and doesn’t burden the server with any requests.
HTML5 presents a paradigm shift not only for developers but also end-users. Some of the advantages it provides for the end-users are:
HTML5 is the most secure version of HTML. However, apps and sites built using HTML5 are still vulnerable to security attacks.
Common security threats typically come in the form of malicious code, which can be injected through various means such as developer error, music files, images, QR code, SSID fields, or the middleware framework.
Unfortunately, there is no one cure-all solution for building a secure website or web application using HTML5. The site or web application’s security depends on how careful and thorough the web developer is in creating it.
In addition, one needs to understand the vulnerabilities of the platform used to build their website. For example, WordPress users must understand the content management system’s security vulnerabilities to secure their WordPress websites properly.
Here are some tips and tricks for improving website security:
Learning HTML5 is practically the same as learning HTML, as HTML5 is just the new version of HTML. After mastering one version, writing code using another version of HTML should not be difficult.
These days, almost anyone can learn HTML on their own, which is made even easier through websites for learning to code for free.
Cheat sheets can help you in your journey to learn a new language. Below, we’ve provided a downloadable sheet containing the most commonly used HTML tags and new tags for HTML5.
Download complete HTML cheat sheet
It may be good practice to switch to HTML5. One of the main reasons being that HTML5 has already replaced Flash for providing multimedia content on various platforms.
Lots of major industry names have migrated from Flash to HTML5. Examples include Apple, Youtube, and Google Chrome.
Here are more reasons to switch from Adobe Flash to HTML5:
To help you decide whether to switch to HTML5, here are some pros and cons of using HTML5.
Pros
Cons
If you want to switch from Flash to HTML5, here is a brief step-by-step guide to follow:
The kinds of Flash to HTML5 conversion tools to use depend on the files you have.
If you have the source .fla and .as3 files, we recommend using Google Web Designer or Adobe Animate. If you only have the .swf files, we recommend using tools such as Zoë from CreateJS or OpenFL.
Here are brief descriptions of each tool:
HTML is the most commonly used markup language for developing web pages and applications. HTML5 is the latest version of HTML.
In this HTML vs HTML5 article, we have discussed the key features distinguishing HTML5 from its predecessors and new ones such as:
In addition to the features above, HTML5 provides various new elements, form controls, attributes, and APIs, especially beneficial for developers and end-users.
We recommend that users of Adobe Flash switch to HTML5. Although HTML5 has its own pros and cons, many notable names in the industry have switched to HTML5 due to various security and performance concerns.
If you use Flash and want to switch to HTML5, you should do so carefully, using the appropriate conversion tools such as Google Web Designer, Adobe Animate, Zoë from CreateJS, and OpenFL.
We hope this HTML vs HTML5 article is of help to you. Good luck.
Comments
May 19 2018
Nice summary
July 15 2018
thank you very much and it's very nice contents
July 15 2018
You're welcome! I hope you were able to learn something new ;)
August 25 2018
Nice summary, thanks!
September 25 2018
Thanks for the refreshing content!
October 28 2018
I liked this summary. Keep on going..!
October 29 2018
Nice content.
December 02 2018
Thank you, very nicely explained.
January 13 2019
Thanks for helping with my holiday homework!
February 02 2019
Well described, loved the infographic part, very informative.
April 14 2019
Very Easy understandable and good explanation. Thank You
June 04 2020
Good experience
September 19 2023
You have a typo above, in the HTML5 column of the 4th paragraph. It reads "HTML allows users to draw shapes…" when it should be "HTML5 allows…"
September 26 2023
Hello, thanks for noticing, fixed now!
March 28 2024
Currently this article says it's dated Sep 26, 2023, but has comments spanning back to 2018 which feels like a date update to keep it performing in search but not actually being recent. This article came up as the first google result and I just keep asking myself why the hell is it talking about Flash? To my knowledge no major web browser capable of HTML 5 are even capable of displaying Flash content, so why spend so much time talking about transitioning Flash to HTML 5? ... Also, even if this article has been lightly updated since it's publishing (presumably in 2018), it really shouldn't have a date telling search engines it's newer content. Most of this info isn't even useful anymore.
April 18 2024
Hi Max, thank you so much for sharing your feedback with us. We want to clarify that our system automatically updates the date whenever there's any change made to a tutorial, not just for full rewrites. So, rest assured that even small updates trigger a date change. Your feedback is incredibly valuable to us, and we'll definitely take it into consideration. We'll make sure to update the article to reflect the most current information ?