What Programming Languages Are Used in RPA UiPath?

In 2019, the global robotic process automation (RPA) market reached $1.4 billion. It’s projected to hit $11 billion by 2027, expanding at a CAGR of 34% from 2020 to 2027. These numbers are not surprising, as RPA revenue grew by 63% in 2018.

UiPath is a tool used in RPA, which is the technology that allows for the management, deployment, and building of robots, easily emulating human actions. RPA UiPath is used to automate repetitive tasks, letting knowledge workers focus on revenue-generating workflows. The programming languages used are Visual Basic and C#.

Although UiPath robotic process automation hasn’t been optimized for many organizations, it’s essential to examine how it can free up time from doing repetitive computer tasks for both employees and IT teams.

Programming Languages Used in RPA UiPath

There are various coding and programming languages available that serve as an intermediary between computer language and humans. Some of these may be high level but offer less control over computers. Others may be low-level and machine friendly, which is more memory-efficient and faster to execute.

Some of the top programming languages include Java, Python, C++, C#, Visual Basic, SQL, PHP and JavaScript. You may note HTML and CSS aren’t listed here, because they only determine the style and structure of web pages. They don’t have statements and instructions like the others mentioned.

RPA platforms have their respective base and programming language. For RPA UiPath, .NET makes Visual Basics.NET and C#.NET the best programming languages to use.

Visual Basics.NET

Visual Basics.NET, or VB.NET, is an object-oriented programming language developed by Microsoft. It supports multiple features, including polymorphism, encapsulation, abstraction and inheritance. Moreover, it’s a productive tool for creating web, Office, Windows, and other mobile applications built on the .NET framework.

Its design is easy to understand for everyone. Programs in this language run with increased scalability and reliability. It also allows the creation of fully object-oriented applications like those created in C++, C# and Java.

It can also interoperate well with programs written in Visual C#, Visual C++ and Visual J#.

Because RPA UiPath is a low-code platform, it provides a more straightforward method for writing custom code or logic and building workflows with Invoke Code Activity.

Here are some of the features, advantages, and disadvantages of using Visual Basics.NET in a UiPath platform. 


  • Unlike C++ and Java, it’s not case-sensitive.
  • Automatic XML design and code formatting.
  • It supports Boolean conditions for decision-making.
  • Has a simple, generic, standard library and events management.
  • Windows forms allow inheritance from an existing form.
  • Has simple multithreading, enabling apps to simultaneously deal with multiple tasks.


  • Object-oriented constructs can create enterprise-class code.
  • Web applications have modern features, such as file systems, event logs and performance counters.
  • It allows connection between applications created in languages running on the .NET framework.
  • Through visual forms designer, the creation of web forms is easier.
  • Features, such as automatic control anchoring, docking and in-place menu editor, make web application development efficient.


  • Can’t directly handle pointers, a requisite in programming.
  • Added coding will only lead to increased CPU cycles, slowing down your application.


C# is a strongly typed, object-oriented and multi-paradigm programming language developed by Microsoft running on the .NET framework. Application of the language is often targeted for Windows and mobile applications. Also, it’s modern and simple, providing developers the features and flexibility to build software for future use.

Because it’s based on C+ and C++, it won’t be difficult for you to grasp C# if you already know the other two. Even though it’s simple to learn, its syntax is highly expressive.

Below are the features, advantages and disadvantages of using C#.NET in a UiPath Microsoft platform. 


  • Its compilation and execution are too fast.
  • It provides a structured approach to breaking problems into pieces.
  • It’s object-oriented, making maintenance and development easier.
  • It’s based on modern trends, making it a modern programming language.
  • The language is type-safe and can only access the memory location and asks for permission to execute.
  • It has interoperability, enabling C# programs to work on anything native C++ apps can do.
  • It’s an updateable, computerized and scalable programming language.
  • Although a structured language, it’s only a subset of procedural programming.
  • It has a rich library with several inbuilt functions, allowing for fast development.


  • It has a strong memory backup.
  • Applications in .NET have better interpretability and integration, unlike other .NET technologies.
  • It has a lower maintenance cost and is safer to run.
  • Its core syntax is like those of C-style languages.
  • It’s the most valuable and powerful language for the .NET framework.


  • It does not suit inexperienced developers.
  • It takes a while to get used to the language.
  • It’s less flexible than other C-style languages.


An RPA UiPath automation platform has many benefits, including significant cost savings, accelerated transformation, higher accuracy and greater resilience. For these reasons, understanding the .NET framework and the proper language to use are critical to your business process automation projects.

Ready to learn more about RPA? Start today.

About the Author: Thomas Helfrich

As Vice President of the Intelligent Automation Practice at System Soft Technologies, Tom uses emerging technologies, including artificial intelligence, machine learning and robotic process automation, to drive disruptive business performance and help customers offset operational and financial challenges. His powerful knowledge of Blue Prism, Automation Anywhere, UiPath and Datamatics, as well as his expertise in the application of advanced technologies, spurs cost-effective business scale through automating processes and augmenting humans.