Open source · Apache-2.0 · on GitHub

Open-source COBOL tooling

Real, runnable, permissively licensed — and public today. Start inside your firewall with no commitment, and tell us what your estate needs.

Open core · Apache-2.0

COBOL Migration Toolkit

Scan a COBOL estate into an inventory, dependency graphs (call + copybook), metrics, and HTML/Markdown/JSON reports. Fixed & free format, copybook resolution, a versioned schema, and a plugin API. Runs entirely locally.

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Demo · Apache-2.0

COBOL REST Bridge

Expose compiled COBOL business logic through a modern FastAPI REST service — a clean, containerized integration pattern you can build on.

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Experimental · Apache-2.0

COBOL → Rust

An extensible COBOL-to-Rust transpiler scaffold: source → IR → generated Cargo project. A credible starting point, verified by differential testing over time.

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These tools are early and evolving. If you run COBOL, your feedback shapes them — open an issue on any repo, or email usabout a design-partner engagement.

The commercial tier

Need assessment-grade analysis?

The free toolkit handles discovery. Cartograph adds complexity, effort scoring, and deeper analyzers — deployed inside your network.