Desktop Application

Transpile COBOL to six modern languages

Easy COBOL Migrator converts legacy COBOL source code to C++, Python, Rust, Go, Java, and C# - with a native desktop GUI. No cloud. No vendor lock‑in.

report.cob → report.cpp
// Transpiled from COBOL program: REPORT

#include <iostream>
#include <string>

namespace report {

struct {
    std::string employee_name =
        std::string(30, ' ');
    int64_t employee_salary = 0;
} employee_record;

void process_report() {
    std::cout << employee_record.employee_name
              << std::endl;
}

} // namespace report
Target languages
C++
Python
Rust
Go
Java
C#

Built for real COBOL

Not a wrapper around an LLM. A purpose-built transpiler with a proper parser, tested against industry standard validation suites.

Native desktop app

Cross-platform Qt GUI. Load your sources, pick a target language, transpile. No cloud uploads, no API keys, no subscriptions phoning home.

NIST CCVS85 validated

Tested against the NIST COBOL Compiler Validation System. The same suite used to certify commercial COBOL compilers.

Six target languages

C++, Python, Rust, Go, Java, and C#. Same parser, six backends. Choose the language that fits your team and stack.

Your code stays yours

Everything runs locally. Source code never leaves your machine. No cloud processing, no third-party data exposure.

Readable output

Generates clean, idiomatic code with proper naming, structure, and comments tracing back to the original COBOL paragraphs.

Honest diagnostics

Unsupported constructs are flagged with clear warnings - not silently dropped or incorrectly translated. You know exactly what needs manual review.

Three steps

No complex setup. No project configuration files. Just point it at your COBOL and go.

1

Load your source

Open a .cob, .cbl, or .cpy file. The parser handles fixed-format, free-format, and continuation lines.

2

Pick your target

Select from C++, Python, Rust, Go, Java, or C#. Configure output options if needed.

3

Transpile

Get readable, compilable output with diagnostics for anything that needs manual attention.

Ready to migrate?

See pricing, screenshots, and documentation on the full product page.

View on mecanik.dev →