Three simple steps
How to use this tool?
This free online converter translates Delphi source code into C# in three simple steps.
- Step 1
Add your Delphi code
Type, paste, or upload the Delphi 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.
Language comparison
Key differences between Delphi and C#
| Characteristic | Delphi | C# |
|---|---|---|
| Syntax | Pascal-based syntax, known for its readability and simplicity. | C-style syntax, similar to Java and C++, with a focus on modern programming constructs. |
| Paradigm | Object-oriented programming with support for procedural programming. | Multi-paradigm, supporting object-oriented, functional, and imperative programming. |
| Typing | Strongly typed with static typing. | Strongly typed with static typing, but also supports dynamic typing with the 'dynamic' keyword. |
| Performance | Generally high performance for native applications, especially in GUI development. | Good performance, but relies on the .NET runtime which can introduce overhead. |
| Libraries and frameworks | Rich set of libraries for desktop and mobile development, but fewer modern web frameworks. | Extensive libraries and frameworks, especially for web (ASP.NET), desktop, and cloud applications. |
| Community and support | Smaller community, but dedicated with a long history; support mainly through forums and user groups. | Large and active community with extensive resources, documentation, and support from Microsoft. |
| Learning curve | Relatively easy for beginners, especially those familiar with Pascal. | Moderate learning curve, especially for those new to C-style languages, but well-documented. |
Common questions
Frequently Asked Questions
How do I convert Delphi to C#?
Paste your Delphi code into the input box, confirm the languages are set to Delphi and C#, and click Convert. CodeConvert AI analyzes your Delphi code and generates equivalent C# code in seconds, preserving the original logic and structure.
What are the main differences between Delphi and C#?
Delphi 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 Delphi construct to its closest C# equivalent. See the comparison table below for the key differences between Delphi and C#.
Is the converted C# code accurate?
The AI produces high-quality C# code that preserves the behavior of your original Delphi code and follows C# conventions. It handles common patterns, data structures, and idioms for both Delphi and C#. For large or performance-critical code, review and test the C# output before using it in production.
Can I convert an entire Delphi project to C#?
You can convert Delphi 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 Delphi 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 Delphi?
Yes. CodeConvert AI converts in both directions, so you can convert C# to Delphi just as easily using our C# to Delphi converter. Try the C# to Delphi Converter
Is the Delphi 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 Delphi 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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