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Once upon a time, the world of computer programming was a mysterious and exclusive place. Only a select handful of people were considered computer programmers with cutting-edge coding skills. Today, many IT jobs require a solid grasp of the top programming languages, and yes, we mean more than one.
If your plans to advance your career or change careers completely requires you to master a programming language, you might wonder which one to learn. After all, it will take time and money to learn the language, so you want to make the right choice.
When making your decision, you should bear several considerations in mind, like the difficulty level you’re willing to tackle, the programming language knowledge you already possess that meshes with your existing coding skills, or your reasons for learning a top programming language.
Whether you want to develop a mobile application, get certification for programming knowledge, or learn new skills, you need to learn the right programming language. Below you’ll learn about the best programming languages in demand among employers in 2023. You’ll be briefed about the details of each language, its complexity, and how it is used.
What is a Programming Language?
A programming language is a way for programmers (developers) to communicate with computers. Programming languages consist of a set of rules that allows string values to be converted into various ways of generating machine code, or, in the case of visual programming languages, graphical elements.
Generally speaking, a program is a set of instructions written in a particular language (C, C++, Java, Python) to achieve a particular task.
What Are the Best Programming Languages to Learn in 2023?
What coding and programming language should i learn? JavaScript and Python, two of the most popular languages in the startup industry, are in high demand. Most startups use Python-based backend frameworks such as Django (Python), Flask (Python), and NodeJS (JavaScript). These languages are also considered to be the best programming languages to learn for beginners.
Below is a list of the most popular and best programming languages that will be in demand in 2023.
1. Javascript
2. Python
3. Go
4. Java
5. Kotlin
6. PHP
7. C#
8. Swift
9. R
10. Ruby
1. JavaScript
JavaScript is a high-level programming language that is one of the core technologies of the World Wide Web. It is used as a client-side programming language by 97.8 percent of all websites. JavaScript was originally used only to develop web browsers, but they are now used for server-side website deployments and non-web browser applications as well.
Javascript was created in 1995 and was initially known as Live Script. However, Java was a very popular language at that time, so it was advertised as a “younger brother” of Java. As it evolved over time, JavaScript became a fully independent language. Nowadays, JavaScript is often confused with Java, and although there are some similarities between them, the two languages are distinct.
Javascript is the most popular programming language in the world and is in high demand among various organizations. The average Java developer earns around $112,152 each year.
Level: | Beginner to Intermediate |
Skills Needed: | HTML and CSS to define the content and layout of web pages |
Platform: | Cross-platform (desktop, mobile, web) |
Popularity Among Programmers: | The most popular programming language in the world |
Benefits: |
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Downsides: | Can sometimes be interpreted differently by different browsers which makes it difficult to write cross-browser code. |
Degree of Use: | Widely used; highly applicable |
Annual Salary Projection: | $112,152 |
2. Python
Python is one of the most popular programming languages today and is easy for beginners to learn because of its readability. It is a free, open-source programming language with extensive support modules and community development, easy integration with web services, user-friendly data structures, and GUI-based desktop applications. It is a popular programming language for machine learning and deep learning applications.
Python is used to develop 2D imaging and 3D animation packages like Blender, Inkscape, and Autodesk. It has also been used to create popular video games, including Civilization IV, Vegas Trike, and Toontown. Python is used for scientific and computational applications like FreeCAD and Abacus and by popular websites like YouTube, Quora, Pinterest, and Instagram. Python developers earn average annual salaries of about $109,092.
Level: | Beginner – Python enables a beginner to become productive quickly |
Skills Needed: | Problem-solving, abstract thinking |
Platform: | Web, Desktop |
Popularity Among Programmers: | Becoming continuously more popular |
Benefits: |
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Downsides: | Doesn’t start with programming basics (known to abstract too many important basic concepts) |
Popularity: | Becoming continuously more popular both in technical education and business uses |
Degree of Use: | Coding skills widely used; popular in both technical education and business use |
Annual Salary Projection: | $109,092 |
3. Go
Go was developed by Google in 2007 for APIs and web applications. Go has recently become one of the fastest-growing programming languages due to its simplicity, as well as its ability to handle multicore and networked systems and massive codebases.
Go, also known as Golang, was created to meet the needs of programmers working on large projects. It has gained popularity among many large IT companies thanks to its simple and modern structure and syntax familiarity. Companies using Go as their programming language include Google, Uber, Twitch, Dropbox, among many others. Go is also gaining in popularity among data scientists because of its agility and performance.
Go developers can earn an average annual salary of $141,654, and hitting up to $261,000.
Level: | Beginner to intermediate |
Skills Needed: | Easy to learn if you already know at least one other programming language; otherwise, you just need patience and a willingness to learn. |
Platform: | Cross-platform, mainly desktop |
Popularity Among Programmers: | Not as popular as Java or Python, but it has been increasing in popularity |
Benefits: |
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Downsides: | No generics (which means you may end up writing more code than you would in other languages); very little library support; Go developer community is not very robust or supportive |
Degree of Use: | Widely used, particular for Google applications (created at Google) |
Annual Salary Projection: | $141,654 |
4. Java
Java is one of the most popular programming languages used today.
Owned by Oracle Corporation, this general-purpose programming language with its object-oriented structure has become a standard for applications that can be used regardless of platform (e.g., Mac, Windows, Android, iOS, etc.) because of its Write Once, Run Anywhere (WORA) capabilities. As a result, Java is recognized for its portability across platforms, from mainframe data centers to smartphones. Today there are more than 3 billion devices running applications built with Java.
Java is widely used in web and application development as well as big data. Java is also used on the backend of several popular websites, including Google, Amazon, Twitter, and YouTube. It is also extensively used in hundreds of applications. New Java frameworks like Spring, Struts, and Hibernate are also very popular. With millions of Java developers worldwide, there are hundreds of ways to learn Java. Also, Java programmers have an extensive online community and support each other to solve problems.
Java is a more complex language to learn, but experienced developers with Java coding skills are in high demand. The average Java developer earns around $109,225 each year.
Level: | Intermediate |
Skills Needed: | Problem-solving, knowledge of the object-oriented structure |
Platform: | Web, Mobile, Desktop |
Popularity Among Programmers: | One of the world’s most popular; high demand |
Benefits: |
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Downsides: | Lots of new vocabulary to learn; a higher-level language |
Degree of Use: | Widely used; highly applicable |
Annual Salary Projection: | $109,225 |
5. Kotlin
Kotlin is a general-purpose programming language originally developed and unveiled as Project Kotlin by JetBrains in 2011. The first version was officially released in 2016. It is interoperable with Java and supports functional programming languages.
Kotlin is used extensively for Android apps, web application, desktop application, and server-side application development. Kotlin was built to be better than Java, and people who use this language are convinced. Most of the Google applications are based on Kotlin. Some companies using Kotlin as their programming language include Coursera, Pinterest, PostMates among many others.
Kotlin developers earn an average of $136,000 a year, with the potential to earn up to $171,500.
Level: | Intermediate to advanced |
Skills Needed: | Prior experience with programming languages, particularly Java |
Platform: | Web, Mobile, Desktop, Server |
Popularity Among Programmers: | Increasingly popular; used for Android applications |
Benefits: |
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Downsides: | Fluctuating compilation speed; no static keyword in Kotlin |
Degree of Use: | Widely used; highly applicable |
Annual Salary Projection: | $136,000 |
6. PHP
PHP is an open-source programming language created in 1990. Many web developers find it essential to learn PHP, as this language is used to build more than 80% of websites on the Internet, including notable sites like Facebook and Yahoo.
Programmers mainly use PHP mainly to write server-side scripts. But developers can also use this language to write command-line scripts, and programmers with high-level PHP coding skills can also use it to develop desktop applications.
PHP is considered a relatively easy language to learn for beginning developers. PHP professionals have access to several dedicated online communities, making it easy to get support and answers to questions.
On average, PHP programmers earn average annual salaries of about $107,409.
Level: | Beginner to intermediate |
Skills Needed: | Simple if you have a background in programming languages, but relatively easy to learn for newcomers |
Platform: | Cross-platform (desktop, mobile, web) |
Popularity Among Programmers: | Used by nearly 80% of all active websites, so it’s very popular with web developers |
Benefits: |
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Downsides: | Not very secure; not well-suited for large applications; poor error-handling; cannot support a large number of apps |
Degree of Use: | While it’s used by the vast majority of websites, its use is declining |
Annual Salary Projection: | $107,409 |
7. C#
Developed by Microsoft, C# rose to fame in the 2000s for supporting the concepts of object-oriented programming. It is one of the most used programming languages for the .NET framework. Anders Hejlsberg, the creator of C#, says the language is more like C++ than Java.
C# is best suited for applications on Windows, Android, and iOS, as it takes the help of the integrated development environment product, Microsoft Visual C++. C# is used on the back end of several popular websites like Bing, Dell, Visual Studio, and MarketWatch. C# developers earn around $111,760 per year.
Level: | Intermediate |
Skills Needed: | A basic understanding of how to write code |
Platform: | Cross-platform, including mobile and enterprise software applications |
Popularity Among Programmers: | Relatively popular, but not as popular as Java (its closest rival) |
Benefits: |
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Downsides: | Less flexible, as it depends on Microsoft’s .Net framework; poor x-platform GUI |
Degree of Use: | Used by roughly one-third of all software developers, particularly relevant for Microsoft developers |
Annual Salary Projection: | $111,760 |
8. Swift
A few years ago, Swift made the top 10 in the monthly TIOBE Index ranking of popular programming languages. Apple developed Swift in 2014 for Linux and Mac applications.
An open-source programming language that is easy to learn, Swift supports almost everything from the programming language Objective-C. Swift requires fewer coding skills compared with other programming languages, and it can be used with IBM Swift Sandbox and IBM Bluemix. Swift is used in popular iOS apps like WordPress, Mozilla Firefox, SoundCloud, and even in the game Flappy Bird. Professionals who develop iOS applications take home average annual salaries of around $106,652.
Level: | Beginner to intermediate |
Skills Needed: | Willingness to spend time reading tutorials (which are widely available); no prior experience with programming languages required |
Platform: | Mobile (Apple iOS apps, specifically) |
Popularity Among Programmers: | Gaining in popularity, especially among Apple iOS application developers |
Benefits: |
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Downsides: | Still a young language; poor interoperability with third party tools; lacks support for earlier versions of iOS |
Degree of Use: | Used extensively for creating iOS apps used on the iPhone, iPad, and Apple Watch |
Annual Salary Projection: | $109,652 |
9. R
R is an open-source language that is essentially a different version of the S language. Much of the code that developers write for S runs on R without modification.
Applications built in R are used for processing statistics, including linear and nonlinear modeling, calculation, testing, visualization, and analysis. Applications coded using R can interface with a number of databases and process both structured and unstructured data.
R has a moderate learning curve and is not as easy for beginners to pick up as some other languages in this article. However, like other open-source programming languages, R boasts an active online community of developers, which is always a plus when learning new coding skills.
On average, R developers earn average annual salaries of about $90,940.
Level: | Intermediate |
Skills Needed: | Easier if you already know Javascript or Python, but it’s recommended for people with a firm grasp of mathematics |
Platform: | Mainly desktop |
Popularity Among Programmers: | Not nearly as popular as it once was, mainly due to rival language Python’s soaring popularity |
Benefits: |
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Downsides: | Objects are stored in physical memory, which can strain resources; lacks basic security; slower than Matlab or Python |
Degree of Use: | Widely used for analytics |
Annual Salary Projection: | $90,940 |
10. Ruby
If you want to start with a language that is known for being relatively simple to learn, consider Ruby. Developed in the 1990s, it was designed to have a more human-friendly syntax while still being flexible from the standpoint of its object-oriented architecture that supports procedural and functional programming notation. A web-application framework that is implemented in Ruby is Ruby on Rails (“RoR”). Ruby developers tout it for being an easy language to write in and also for the relatively short learning time required. These attributes have led to a large community of Ruby developers and a growing interest in the language among beginning developers. The average salary for a Ruby developer is around $121,000 per year.
Level: | Beginner – Ruby and Ruby on Rails have evolved to become extremely popular for web developers. |
Skills Needed: | Problem-solving, abstract thinking (ability to visualize what application users want to see) |
Platform: | Web |
Popularity Among Programmers: | On the rise |
Benefits: |
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Degree of Use: | Least broadly used |
Annual Salary Projection: | $121,070 |
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