Three simple steps
How to use this tool?
This free online converter translates JavaScript source code into C# in three simple steps.
- Step 1
Add your JavaScript code
Type, paste, or upload the JavaScript code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into C#.
- Step 3
Review the result
Review, copy, or download the resulting C# code from the output editor.
See it in action
Examples of JavaScript to C# conversion
These examples show JavaScript source code and the corresponding C# translation. Generated results can vary as AI models are updated.
Example 1
Is String Palindrome
Program that checks if a string is a palindrome or not.
JavaScript code
C# code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
JavaScript code
C# code
Language comparison
Key differences between JavaScript and C#
| Characteristic | JavaScript | C# |
|---|---|---|
| Syntax | JavaScript has a C-like syntax with curly braces, while also supporting functional programming features such as anonymous functions and closures. | C# has a syntax similar to Java and C++, with curly braces and semicolons to denote code blocks and statements. |
| Paradigm | JavaScript is a multi-paradigm language that supports object-oriented, functional, and imperative programming styles. | C# is an object-oriented language that supports imperative, declarative, and functional programming styles. |
| Typing | JavaScript is a dynamically typed language, meaning that variable types are determined at runtime. | C# is a statically typed language, meaning that variable types are determined at compile time. |
| Performance | JavaScript is generally slower than C# due to its interpreted nature and lack of native code compilation. | C# is generally faster than JavaScript due to its compiled nature and ability to generate native code. |
| Libraries and frameworks | JavaScript has a vast array of libraries and frameworks available, including React, Angular, and Node.js. | C# has a smaller selection of libraries and frameworks available, but still includes popular options such as .NET and ASP.NET. |
| Community and support | JavaScript has a large and active community with many resources available for learning and troubleshooting. | C# also has a large and active community, with Microsoft providing extensive documentation and support. |
| Learning curve | JavaScript has a relatively low learning curve due to its forgiving syntax and widespread use in web development. | C# has a steeper learning curve than JavaScript due to its more complex syntax and focus on object-oriented programming. |
Common questions
Frequently Asked Questions
How do I convert JavaScript to C#?
Paste your JavaScript code into the input box, confirm the languages are set to JavaScript and C#, and click Convert. CodeConvert AI analyzes your JavaScript code and generates equivalent C# code in seconds, preserving the original logic and structure.
What are the main differences between JavaScript and C#?
JavaScript and C# differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each JavaScript construct to its closest C# equivalent. See the comparison table below for the key differences between JavaScript and C#.
Is the converted C# code accurate?
The AI produces high-quality C# code that preserves the behavior of your original JavaScript code and follows C# conventions. It handles common patterns, data structures, and idioms for both JavaScript and C#. For large or performance-critical code, review and test the C# output before using it in production.
Can I convert an entire JavaScript project to C#?
You can convert JavaScript files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from JavaScript to C#. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert C# back to JavaScript?
Yes. CodeConvert AI converts in both directions, so you can convert C# to JavaScript just as easily using our C# to JavaScript converter. Try the C# to JavaScript Converter
Is the JavaScript to C# converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert JavaScript to C# without an account for up to 5 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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