5 fastest growing languages: how to stay ahead of the curve in 2020

The world of coding is continuously adapting and new programming languages are rapidly being developed. With hundreds of languages on the market we know it’s difficult to know which ones are worth learning and which ones will wither and fall by the wayside against titans such as Python and JavaScript. We’ve compiled some of the fastest growing languages to keep your skills ahead of competing developers and keep you in demand going into 2020.

Go by Google

Golang logo with mascot to the right hand side. Mascot is a cartoon blue gopher

Initially designed by combining the efficiency of C++ and the readability of Python & JavaScript, Go by Google has made a huge impact on the market. You can find Go being used by big brands such Netflix, Dropbox, Soundcloud and Uber as well as being used for new technologies such as AI and Blockchains.

Key Features:

  • Compilation time is very fast
  • Concise, simple and fast
  • Supports interface sand the embedded types
  • Excellent built in support for concurrent programming – ideal for highly complex applications
  • Strict typing allows easy debugging compared to Python
  • Multi-threading features make it one of the most useful languages for handling parallel web requests & large networks

Now for the stats…

According to research conducted by Octoverse in collaboration with Github, Go ranks 7th in fasted growing languages from research conducted September 30 2018.

Image Source: Octoverse 2018. Screen capture of ranked programming languages with their rate of growth.
{ https://octoverse.github.com/projects }

Not only is it growing rapidly, Go is also ranked highly both in the most loved (placing 5th,) and most wanted (placing 3rd,) languages lists, put together by Stack Overflow and with good reason.


HashiCorp logo

Hashicorp built their own language when they found existing languages limiting. Their aim was to build a human-friendly language used for DevOps tools and servers. HCL ranks second highest on Github’s fastest growing languages list and since last year the number of contributors has more than doubled (survey conducted September 30 2018.)

HashiCorp says “Our configuration language (HCL) is designed to be written and modified by humans.


  • Fully JSON compatible
  • Designed to help developers quickly turn out code
  • The API for HCL allows JSON as an input so that it is also machine-friendly (machines can generate JSON instead of trying to generate HCL).


PowerShell icon

If you’re in IT, learn this to automate and remotely perform special tasks on any Windows PC on the corporate network. Big brands such as Axa Insurance, Asos, Vitality, Sky and Microsoft all have PowerShell listed as a preferred scripting language on their job descriptions.

As of March 2019, PowerShell entered the TIOBE index top 50 coding languages even though it is now 12 years old. 3 years ago, Microsoft open sourced it as beforehand it was only available on Windows machines and we put this move by Microsoft down to its recent development growth.


  • It’s already available (mostly) in Windows machines
  • Used for creating text files, backups, parsing files, etc.It’s native to Windows, meaning it can use .Net and speaks the Window jargon like AD (Active Directory) etc.
  • It’s native to Windows, meaning it can use .Net and speaks the Window jargon like AD (Active Directory) etc.


Haskell logo

Haskell. It’s claimed to be the language most likely to change the way you think about programming. With AI and machine learning becoming heavily relied on for the future, it’s no wonder that the demand for Haskell literate developers is on the rise. Currently, Haskell is being used to develop new innovative software services for both doctors and patients. There are also internal Haskell R&D projects taking place at Google, Microsoft, Twitter and Facebook.

Companies such as; Facebook, Intel, Microsoft and AT&T all have a preference for Haskell scripting language.

Image showing Java code on the left and Haskell code on the right to show the simplicity of the Haskell code
Image Source: Huffpost 2017 blog by Aaron Contorer. Image showing Java code vs Haskell code to demonstrate the simplicity of the language.
{ https://www.huffpost.com/entry/haskell-the-language-most_b_4242119?guccounter=2 }


  • Immutable variables by default
  • Full type inference – type declarations optional
  • Pattern matching on data structures – data structures are first class!
  • Lazy evaluation: results are only computed if they’re required (strictness optional)
  • Static type
  • Support for syntax based on layout

Information gathered from: wiki.haskell.org, 29 Oct 2011

Haskell features both in Stack Overflow’s most loved (15th place,) and most wanted (17th place,) lists.

Image showing bar chart of most loved languages. The top 5 are; Kotlin, Python, TypeScript, Go and Swift.
Image Source: Stack Overflow most loved language, 2018 Developer Survey Results
{ https://insights.stackoverflow.com/survey/2018/#most-loved-dreaded-and-wanted }

Dart by Google

Dart logo

As technology is continuously pushing us towards mobile, we’ve added Dart as a bonus onto our list. Dart was developed by Google and is used to develop mobile apps for iOS and Android devices by using a single language and codebase. Google and Amazon have preference to Dart language as a skill for their mobile apps. 

Dart is not just used for mobile app development; it can also be used to build programming. This is down to the Dart code itself looking very similar to the C languages and Java and is an object-orientated language.

What’s Next?

Whether you’re new to programming or adding a language to your portfolio, here are some tips to help with your learning:

Surround yourself with code- To learn code effectively, you need to read it. A lot of it. GitHub is a useful tool to find code in the language you’re learning. The platform is used by 30 million developers across the world and offers the opportunity to host and review code, manage products and build software alongside other professionals.

Use resources- When you’re learning a new language and starting to solve coding challenges, you’ll come across problems on the way. To overcome the issues, head over to the website Stack Overflow. Founded in 2008, it’s the largest and most trusted online community for developers, offering a platform to help solve each other’s coding problems, enhance skills and engage with businesses. Code Review is also a great resource to make use of; it allows you to get reviews of your code from experts in the language you are learning- helpful right?

Get building- Once you get into the swing of things and begin to feel confident with a new language, go ahead and build something. Putting your knowledge to use and building something with code will really help you to get to know the language. Happy coding!

If you’re looking for more coding advice & predictions, check out our blogs on four programming languages you should consider learning and 2019 tech predictions – what’s in store?

Information Technology