Three simple steps
How to use this tool?
This free online converter translates Swift source code into C# in three simple steps.
- Step 1
Add your Swift code
Type, paste, or upload the Swift 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 Swift to C# conversion
These examples show Swift 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.
Swift code
C# code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Swift code
C# code
Language comparison
Key differences between Swift and C#
| Characteristic | Swift | C# |
|---|---|---|
| Syntax | Swift has a concise and expressive syntax that is similar to many modern programming languages. | C# has a syntax that is similar to C and C++, making it familiar to developers of those languages. |
| Paradigm | Swift supports both object-oriented programming and functional programming paradigms. | C# is primarily an object-oriented programming language, but it also supports some functional programming features. |
| Typing | Swift is a strongly typed language with type inference, which means that the compiler can often infer the type of a variable based on its initial value. | C# is a statically typed language, which means that variable types must be explicitly declared. |
| Performance | Swift is known for its high performance and low memory footprint, making it suitable for resource-intensive applications. | C# is also a high-performance language, but it may not be as efficient as Swift in certain scenarios. |
| Libraries and frameworks | Swift has a growing ecosystem of libraries and frameworks, but it may not have as many options as C#. | C# has a large and mature ecosystem of libraries and frameworks, making it suitable for a wide range of applications. |
| Community and support | Swift has a strong and active community, with good support from Apple and other developers. | C# also has a large and active community, with support from Microsoft and a wide range of developers. |
| Learning curve | Swift has a relatively low learning curve, especially for developers familiar with other modern programming languages. | C# has a moderate learning curve, especially for developers with experience in C-like languages. |
Common questions
Frequently Asked Questions
How do I convert Swift to C#?
Paste your Swift code into the input box, confirm the languages are set to Swift and C#, and click Convert. CodeConvert AI analyzes your Swift code and generates equivalent C# code in seconds, preserving the original logic and structure.
What are the main differences between Swift and C#?
Swift 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 Swift construct to its closest C# equivalent. See the comparison table below for the key differences between Swift and C#.
Is the converted C# code accurate?
The AI produces high-quality C# code that preserves the behavior of your original Swift code and follows C# conventions. It handles common patterns, data structures, and idioms for both Swift and C#. For large or performance-critical code, review and test the C# output before using it in production.
Can I convert an entire Swift project to C#?
You can convert Swift 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 Swift 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 Swift?
Yes. CodeConvert AI converts in both directions, so you can convert C# to Swift just as easily using our C# to Swift converter. Try the C# to Swift Converter
Is the Swift 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 Swift 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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