Top 5 Programming Languages to Conquer the World of Coding in 2023

Top programming languages to learn online for free in 2023

Staying ahead of the curve can be difficult in the ever-evolving world of coding. As technology continues to advance, top programming languages rapidly develop.

So, many jobs require a solid grasp of coding. With that in mind, learning the most demanded languages plays a crucial role in your hunt for a high-paying job.     

This article reviews the top 5 programming languages you should learn if you have set about honing your skills as a developer or any job that requires coding skills.  

#1 Python

Should you be interested in back-end web development, data science and app development, Python is undoubtedly one of the best languages to learn.

It was used by 15.7 million programming language communities worldwide this year, which places Python and JavaScript almost on the neighboring pedestals. 

By way of example, as a general-purpose programming language (GPL), many powerful companies like Netflix, YouTube, Google Search, Intel, Facebook and iRobot machines have used Python to develop their websites. Besides, the user-friendly open-source Django framework is written in Python to develop Mozilla, Instagram, and Spotify. Still, this doesn’t mean it is solely popular with experienced coders; quite the contrary, its user-friendly structure, intuitive and clear syntax and versatility make it a perfect choice for beginners too. 

Python Advantages and Key Use Cases

Overall, the following features offered by Python easily add its name to the list of top programming languages in demand.

  • Python uses a very easy-to-learn programming language.
  • Python’s great libraries, such as Librosa and PyAudio are widely used for audio processing. It has built-in modules for basic audio functionalities, plotting vectors, analyzing audio signals and developing a Music information retrieval system.
  • It’s packages like NumPy and SciPy play a prominent role in mathematics, computing and engineering.
  • TensorFlow, PyTorch, scikit-learn and OpenCV are the other Python’s libraries commonly used in data science, machine learning, image processing, and computer vision.
  • Python incorporates variants of C like CPython as well as Java

In addition to its easy-to-use and -learn syntax, massive support libraries, flexibility and productivity, Python has an interactive quality that enables programmers to test code as they go. This frees them from having to create long sections of code before being able to test it.

Python Disadvantages

However, Python is not without its drawbacks. For example, this high-level programming language is not really a good choice for intensive programs and mobile apps. 

It is also reported to have a low execution speed.

Job Opportunities with Python

Nevertheless, Python is one of the top programming languages in the market, if not the one and the average Python developer salary in the US for an entry position is  $89,050. As they get more experience, they can make up to $105,558.

Here are a number of skills required to become a Python Developer: 

  • Core Python concepts (data structure, data types, etc.)
  • Web frameworks (Django, Flask, HTML, etc.)
  • ORM tools (Object Relational Mappers to convert data between two incompatible systems)
  • Data science (machine learning, deep learning, AI, etc.)
  • Good understanding of algorithms and other analytical skills 
Used ForFrameworksDifficulty LevelAvg. Salary
PythonWeb development,
Back-end development,Data science,App development,Audio processing,
Computer graphics,Scientific and mathematical computing,Finance and trading,Basic game development,
Security and penetration testing
Django,Flask,Web2spy,Grok,Cherrypy,Fast API,TurboGears,Quixote,Pylons projectBeginner to Professional $97,050

You are able to learn Python programming languages in Wildlearner entirely free, this platform  gives you a chance to free learning. Free certificates are available upon completion.

Take a Free Python course

#2 JavaScript

JavaScript is an interpreted scripting language that can be used for creating dynamic web pages, adding interactive behavior to web pages, game development and applications. JavaScript is most commonly used as a client-side scripting language in web browsers, allowing users to create interactive effects within their web pages, as well as manage their behavior. 

Javascript is widely used within the tech industry, with many major companies adopting it for their projects, like Facebook, Google, Microsoft and Amazon.

In terms of difficulty, JavaScript has a medium-level complexity. Although it can take some time to learn all aspects of the language, its syntax is relatively straightforward compared to other popular programming languages such as Java or C++. 

Those with experience with HTML and CSS may find picking up on JavaScript concepts easier. By taking advantage of online tutorials or attending coding boot camps, newcomers can quickly become comfortable working with this language without too much effort.

Moreover, learning JavaScript for free is not a myth now! WildLearner offers its users perfectly developed and detailed free courses. Not only will this save you time and money, but it will also provide you with a free certificate upon completion. Knowing Javascript helps you easily find top coding careers.

JavaScript Advantages

Javascript offers several helpful features that make it a go-to language among experienced programmers. 

One of them is its evergreen nature; this means that codes written in different versions of the language can be run on any modern browser with no modifications needed.

Moreover, JavaScript offers an array of frameworks and libraries for developers to use in their development process. These frameworks allow developers to quickly build functional applications in a short time frame. This time efficiency makes it attractive to many businesses looking for cost-effective solutions from their software development teams. Also, the large community of JavaScript users provides helpful support if any issues arise during the development process. 

JavaScript is one of the top programming languages to learn, as it has many advantages. It is considered a versatile language, running both on the front-end and back-end. This means developers proficient with JavaScript can create entire web applications with minimal effort. Let’s take a look at some reasons why coders like to work with JavaScript.

JavaScript Disadvantages

  • On the other hand, larger projects may take longer to develop and require more resources for debugging and optimization compared to strongly-typed projects. 
  • Initially, JavaScript could only support single inheritances rather than multiple inheritances. Some applications may require this object-oriented language feature.
  • Furthermore, due to its dynamic nature, JavaScript is considered less secure than other programming languages, making it more susceptible to malicious attacks from hackers or viruses.
  • JavaScript can be difficult to debug and troubleshoot. Since the code executes from top to bottom, it can be difficult to track down where an error has occurred. 

JavaScript Use Cases

  • Audio libraries for manipulating sound-managing codes with sound design
  • Platform independence and Object-oriented programming
  • Enhanced productivity, performance, and security
  • Being trusted with big companies like Amazon, Adobe, Flipkart and Instagram 
  • Handling and generating events
  • Prototype-based scripting language
  • JavaScript objects for a different console. log methods
  • Timer for websites
  • Game development 

Job Opportunities wirh JavaScript

The average salary of JavaScript in the US is $115,000 / year.

Becoming a JavaScript specialist requires mastering quite a few skills.

  • Areas such as object-oriented programming, DOM manipulation and AJAX are fundamental components when learning the ins and outs of this powerful language. 
  • Knowing how to debug any potential errors is also essential as this can save time in the long run. 
  • Knowing current frameworks like ReactJS and AngularJS will give developers an edge in their work compared with others who may only know basic HTML coding techniques.
Used For FrameworkDifficulty LevelAvg. Salary
JavaScriptCreating dynamic web pages,
Adding interactive behavior to web pages,
Game development, Sound design
Angular JS,jQuery,
Beginner to professional $115,000 / year

#3 Swift

As one of the relatively new languages in demand, Swift has been around for less than a decade and is used to develop iOS and macOS applications to run on iPhones, iPads, Apple watches and Apple TVs.

It is also essential for iOS audio design with diverse features like immersive audio, recording and processing audio in real-time or offline, creating audio effect plug-ins and more.  

In 2015, Swift became available to everyone as an open-source programming language so today, developers of all skills can easily address their issues in a supportive community, learn from each other’s mistakes and access knowledge bases when writing code. Turning to 2021, the hoped-for support extension for Linux and Windows was introduced, which made a huge improvement in favor of coders.

Swift’s dynamic libraries and frameworks exist outside your code to decrease its size and load time and update without getting locked into code.

On the other hand, there are several things developers don’t like pretty much about it. Here are a number of honorable mentions.

  • As mentioned earlier, the language is still young and the size of its community can’t be compared to other open-source programming languages. 
  • It is poorly interoperated – third-party tools can’t be easily used to help with certain tasks. 

Job Opportunities with Swift

According to, a Swift developer earns an annual income of $74,191 to $98,842 in the United States.  

Here are some major skills required to become a swift developer. 

  • Working as an app developer
  • Broadening experience with Objective-C, Swift, Xcode, and Cocoa Touch
  • Holding a grasp of iOS back-end services
  • Gaining knowledge of iOS Frameworks

Swift is one of the top programming languages to learn and if you don’t actually know where to start, take a Free Swift course on Wildlearner.   

Used ForFrameworksDifficulty LevelAvg. Salary
Swift Replacement for all languages based on C,Audio designiOS, Mac,Apple TV,Apple WatchKitura,Perfect,VaporBeginner to professional$87,650/year


HTML (Hypertext Markup Language) is another programming languages used to create websites, text elements, links and web applications. HTML is a markup language that allows developers to create webpages and format content with tags, Giving itstructure and meaning to the text. For instance, these may include elements like headings, paragraphs, images, videos, etc.

HTML can be used to create visually appealing websites quickly and efficiently. The language follows a set of standards that allows it to be compatible across all major browsers, including Chrome, Firefox, Safari and more. 

Companies such as Microsoft, Google, Apple, and Amazon are just some of the large firms that use HTML in their development processes. 

This programming language ensures that users are able to access your website regardless of their browser preference. Additionally, HTML provides support for multimedia elements like audio or video files as well as interactive elements such as forms or menus, making it an ideal choice for quickly creating modern responsive websites.

With its flexible building blocks and easy-to-use syntax structure, HTML remains one of the most used programming languages among both large companies and small businesses alike.

HTML Advantages and Disadvantages

Despite its ease of use, HTML does present certain challenges for those who wish to take their coding skills further. For example, more advanced concepts such as creating interactive webpages or developing complex design templates, require an in-depth understanding of the language’s structure and capabilities. This means that mastering HTML requires dedication and patience from developers but is by no means impossible. 

On the other hand, it also supports browser compatibility which allows developers to create pages that render correctly across different browsers without needing any special coding knowledge. 

HTML consists of several features that make it an excellent choice for creating websites and web pages. Its tags can be used to define text headers, paragraphs, lists, links, images, audio files and video playback, in addition to other elements that enable interactive forms. Furthermore, HTML can be easily integrated with other coding languages such as JavaScript or CSS, which extend its functionality even further.

Job Opportunities with HTML

HTML coders annual salaries are between $58,120 to $73,098. This implies that you can find a high paying remote job and earn money at your home.

As a requirement, you need a text editor to write your HTML and CSS files. Also, you can use notepad on your device.

Now you see that HTML is one of the top programming languages to learn, in terms of growing your career. So, here’s a full learning course of HTML in Wildlearner for free to go beyond and sharpen your skills.

Used ForFrameworkDifficulty LevelAvg. Salary
HTMLWebsites, Making up Text, Links,
Web applications
AngularJS,Angular,Active server pages,ASP.Net Razor,Django,Vue.js,Asp.NET Web Form,
Beginners to professional $95,303/ year

#5 CSS

CSS is an incredibly popular programming language that has seen tremendous growth in demand over the last few years. It’s one of the most frequently used programming languages in web development and design, making it a valuable skill for software developers and designers alike.

CSS, or Cascading Style Sheets, is a style sheet language used to define the look and feel of HTML documents. It’s commonly used to create responsive designs that are easy to maintain and scale up or down depending on the screen size or device used. CSS allows developers to separate content from the presentation so changes can be made quickly without having to rewrite code. Additionally, many modern frameworks such as Bootstrap use CSS for rapid prototyping, making it an essential tool for any web professional.

CSS Disadvantages

First and foremost, CSS is not a full-fledged programming language. It lacks features such as variables and functions, which limits its ability to create complex applications. As a result, developers have to rely on other languages such as JavaScript or HTML for complex projects. 

Job Opportunities with CSS

In the US, the average salary for a CSS developer is $68,707 per year.

A platform like WildLearner has everything for the beginner to learn the basics of CSS and become competitive specialists in the field. Take a Free CSS course to succeed in this new field and advance your career path. Moreover, the free completion certificate will become proof of knowledge and expertise. 

Used ForFrameworksDifficulty LevelAvg. Salary
CSSStyle and layout Web pagesBootstrap,Vue.js,Svelte,Active Server Pages,
Angular AngularJS,
Mid-level to Professional$68,707 /year


The five most popular programming languages are Python, JavaScript, Swift, HTML and CSS – each with strengths and weaknesses that can be weighed against the requirements for different projects.

Choosing the right language for the job depends on the environment in which it will be used, as well as the programmer’s skill level.

You can decide to learn programming languages for different purposes like sound design, developing websites or apps and more. But if you don’t know where to start, use WildLearner to take free courses, get certificates and find your desired job.