Three simple steps
How to use this tool?
This free online converter translates COBOL source code into Rust 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 Rust.
- Step 3
Review the result
Review, copy, or download the resulting Rust code from the output editor.
See it in action
Examples of COBOL to Rust conversion
These examples show COBOL source code and the corresponding Rust 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.
COBOL code
Rust code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
COBOL code
Rust code
Language comparison
Key differences between COBOL and Rust
| Characteristic | COBOL | Rust |
|---|---|---|
| Syntax | COBOL has a verbose and English-like syntax. | Rust has a modern and expressive syntax. |
| Paradigm | COBOL is primarily procedural and imperative. | Rust is a multi-paradigm language, supporting imperative, functional, and object-oriented programming. |
| Typing | COBOL has static typing. | Rust has static typing with type inference. |
| Performance | COBOL is known for its efficiency and performance in handling large-scale business applications. | Rust is designed for high performance and low-level system programming. |
| Libraries and frameworks | COBOL has a limited number of libraries and frameworks compared to modern languages. | Rust has a growing ecosystem of libraries and frameworks. |
| Community and support | COBOL has a smaller and more specialized community with limited support. | Rust has a vibrant and active community with strong support. |
| Learning curve | COBOL has a steep learning curve, especially for developers with no prior experience. | Rust has a moderate learning curve, with a focus on memory safety and concurrency. |
Common questions
Frequently Asked Questions
How do I convert COBOL to Rust?
Paste your COBOL code into the input box, confirm the languages are set to COBOL and Rust, and click Convert. CodeConvert AI analyzes your COBOL code and generates equivalent Rust code in seconds, preserving the original logic and structure.
What are the main differences between COBOL and Rust?
COBOL and Rust 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 Rust equivalent. See the comparison table below for the key differences between COBOL and Rust.
Is the converted Rust code accurate?
The AI produces high-quality Rust code that preserves the behavior of your original COBOL code and follows Rust conventions. It handles common patterns, data structures, and idioms for both COBOL and Rust. For large or performance-critical code, review and test the Rust output before using it in production.
Can I convert an entire COBOL project to Rust?
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 Rust. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Rust back to COBOL?
Yes. CodeConvert AI converts in both directions, so you can convert Rust to COBOL just as easily using our Rust to COBOL converter. Try the Rust to COBOL Converter
Is the COBOL to Rust 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 Rust 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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