Three simple steps
How to use this tool?
This free online converter translates C# source code into Swift in three simple steps.
- Step 1
Add your C# code
Type, paste, or upload the C# code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Swift.
- Step 3
Review the result
Review, copy, or download the resulting Swift code from the output editor.
See it in action
Examples of C# to Swift conversion
These examples show C# source code and the corresponding Swift 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.
C# code
Swift code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
C# code
Swift code
Language comparison
Key differences between C# and Swift
| Characteristic | C# | Swift |
|---|---|---|
| Syntax | C# has a C-style syntax with curly braces and semicolons. | Swift has a syntax similar to C-based languages but with a more concise and expressive syntax. |
| Paradigm | C# supports multiple paradigms including object-oriented, imperative, and functional programming. | Swift is a multi-paradigm language that supports object-oriented, imperative, and functional programming. |
| Typing | C# is a statically typed language with strong type checking. | Swift is a statically typed language with strong type inference and type safety features. |
| Performance | C# is known for its performance and is often used for high-performance applications. | Swift is designed to be fast and efficient, with performance comparable to C and C++. |
| Libraries and frameworks | C# has a wide range of libraries and frameworks available, including the .NET framework. | Swift has a growing ecosystem of libraries and frameworks, with support from Apple's platforms. |
| Community and support | C# has a large and active community with extensive documentation and support. | Swift has a growing community and is supported by Apple with official documentation and resources. |
| Learning curve | C# has a moderate learning curve, especially for developers familiar with C-based languages. | Swift has a relatively low learning curve, with a clean and modern syntax. |
Common questions
Frequently Asked Questions
How do I convert C# to Swift?
Paste your C# code into the input box, confirm the languages are set to C# and Swift, and click Convert. CodeConvert AI analyzes your C# code and generates equivalent Swift code in seconds, preserving the original logic and structure.
What are the main differences between C# and Swift?
C# and Swift differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each C# construct to its closest Swift equivalent. See the comparison table below for the key differences between C# and Swift.
Is the converted Swift code accurate?
The AI produces high-quality Swift code that preserves the behavior of your original C# code and follows Swift conventions. It handles common patterns, data structures, and idioms for both C# and Swift. For large or performance-critical code, review and test the Swift output before using it in production.
Can I convert an entire C# project to Swift?
You can convert C# 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 C# to Swift. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Swift back to C#?
Yes. CodeConvert AI converts in both directions, so you can convert Swift to C# just as easily using our Swift to C# converter. Try the Swift to C# Converter
Is the C# to Swift 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 C# to Swift 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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