Three simple steps
How to use this tool?
This free online converter translates COBOL source code into Carbon in three simple steps.
- Step 1
Add your COBOL code
Type, paste, or upload the COBOL code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Carbon.
- Step 3
Review the result
Review, copy, or download the resulting Carbon code from the output editor.
Language comparison
Key differences between COBOL and Carbon
| Characteristic | COBOL | Carbon |
|---|---|---|
| Syntax | English-like, verbose, designed for readability and business logic. | C++-inspired, modern, concise, designed for clarity and safety. |
| Paradigm | Procedural, imperative, primarily focused on business data processing. | Multi-paradigm, supports procedural, object-oriented, and generic programming. |
| Typing | Static, weak typing with fixed data types and explicit declarations. | Static, strong typing with modern type inference and safety features. |
| Performance | Optimized for batch processing and transaction-heavy workloads; efficient for business applications. | Designed for high performance, aims to match or exceed C++ performance for systems programming. |
| Libraries and frameworks | Limited, mostly legacy libraries focused on business and financial applications. | Currently limited, but aims for compatibility with C++ libraries and modern ecosystem support. |
| Community and support | Mature but shrinking community, strong support in legacy enterprise environments. | Emerging community, active development, growing interest but limited production use. |
| Learning curve | Steep for modern developers due to outdated syntax and paradigms. | Moderate, especially for those familiar with C++ or modern programming languages. |
Common questions
Frequently Asked Questions
How do I convert COBOL to Carbon?
Paste your COBOL code into the input box, confirm the languages are set to COBOL and Carbon, and click Convert. CodeConvert AI analyzes your COBOL code and generates equivalent Carbon code in seconds, preserving the original logic and structure.
What are the main differences between COBOL and Carbon?
COBOL and Carbon differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each COBOL construct to its closest Carbon equivalent. See the comparison table below for the key differences between COBOL and Carbon.
Is the converted Carbon code accurate?
The AI produces high-quality Carbon code that preserves the behavior of your original COBOL code and follows Carbon conventions. It handles common patterns, data structures, and idioms for both COBOL and Carbon. For large or performance-critical code, review and test the Carbon output before using it in production.
Can I convert an entire COBOL project to Carbon?
You can convert COBOL 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 COBOL to Carbon. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Carbon back to COBOL?
Yes. CodeConvert AI converts in both directions, so you can convert Carbon to COBOL just as easily using our Carbon to COBOL converter. Try the Carbon to COBOL Converter
Is the COBOL to Carbon 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 COBOL to Carbon without an account for up to 2 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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