The most important technologies for web application development

The most important technologies for web application development

Technology Stack for Web Application Development in 2021

Web technologies are becoming increasingly important. Companies and end users can access applications, via the Internet, without installing software on their computers.

This has a number of advantages. A big advantage is certainly that all data is stored centrally online, avoiding “data silos” that are difficult to merge.

In this article we describe the most important technologies for the development of such online applications.

Basically, we can speak between server-side and client-side programming. There are different technologies for both.

Server-side programming

The following are used for server-side programming. This is programming that is not visible to the end user. For example, a piece of information is searched and provided from the database, this is achieved with the server-side coding.

Currently, the most popular web technologies are PHP, ASP.NET, Python, Java and Ruby.

Client-side programming

In web development, not only must functions be executed, but these must also be displayed to the user as a result online in the browser. For this purpose, client-side web technologies are used. In the following, the most important of it:

HTML: HTML stands for Hypertext Markup Language and is used to display web pages. Colors, font, hyperlinks, etc. can be displayed and changed via it.

CSS: CSS stands for Casdading Style Sheet and helps how HTML elements are displayed on the screen. The layout can be changed with this.

JavaScript: JavaScript is usually used for client-side programming. This code is written into the HTML page. If the user calls the HTML page, then the JavaScript programming is sent to the browser. The browser in turn decides what it should do with the JavaScript code. A simple pop up, would be an application example, which can be implemented with JavaScript.

jQuery: jQuery makes it easier to use JavaScript. Complicated JavaScript programming that requires multiple lines of code can be called in a single line of code with jQuery.

Ajax: Ajax stands for Asynchronous JavaScript and XML. It is used so that the client side can communicate with the server applications. Example: A user clicks with the cursor on an element of the website. Ajax then sends a request, using XML to the server-side application. The server-side programming processes the request and sends the information via XML back to the client-side (to the web page) that made the request. A second JavaScript function retrieves the data/information and displays this data on the web page.

Angular.JS: Angular.JS (also called Angular) is a JavaScript framework that has gained popularity in recent years. It can be used to easily write client-side web applications. Once called by the user through the browser, it does not need to communicate with the server another time. This makes the application run faster. Complex code and programming can be easily created with Angular.


Database: This is a collection of organized data. It is a collection of tables, queries, reports, views and other objects.

Database Management System (DBMS): DBMS is a software application that interacts with the user, other applications and the database itself to ingest data or analyze data. A common DBMS is designed to define, create, query, update, and administer databases. Well-known DBMS are MySQL, SQL Server from Microsoft, Oracle or DB2.


The server-side software languages PHP, ASP.NET, Python, Java, Ruby, the corresponding web frameworks Laravel, MVC, Django, Rails, the client-side tools HTML, CSS, JavaScript, jQuery, Ajax, Angular.JS and the database software MySQL, SQL Server, Oracle, DB2 mentioned in this article are the most important technologies when it comes to writing web applications.

Many of these tools will remain with us in the future (in the next few years), so it makes sense to learn them. Discover how to choose the right web app stack for your next project