We built LensCodex to solve a problem we lived: understanding decades-old COBOL and JCL systems without institutional knowledge or documentation.
Mainframe systems power critical infrastructure across banking, insurance, government, and healthcare. Yet the knowledge to maintain and modernize these systems is disappearing faster than organizations can adapt.
LensCodex exists to preserve and democratize this knowledge through deterministic code analysis — no assumptions, no manual interpretation, only what exists in the system.
We don't guess or assume. LensCodex reads source code directly and generates artifacts based only on what exists in the system — no interpretation, no modeling, no AI hallucinations.
Our team spent years maintaining legacy systems at financial institutions. We know the pain of undocumented PERFORM trees, conditional JCL logic, and missing copybooks.
We generate structured JSON for automation, Markdown documentation for developers, HTML reports for stakeholders, and Mermaid diagrams for visualization — artifacts you can actually use, not vague recommendations.
Map dependencies across hundreds of programs to plan migrations and identify modernization candidates without disrupting production systems.
Onboard new developers faster with generated documentation and visual diagrams. Understand control flow and data dependencies before making changes.
De-risk modernization projects with complete visibility into business logic, dead code, and system interdependencies across core banking platforms.
Generate deterministic evidence of system behavior for regulatory audits. Track data lineage and control flow across batch processing systems.
We believe in facts, not educated guesses. If it's not in the source code, it's not in our analysis.
You shouldn't need 20 years of COBOL experience to understand a system. We translate legacy complexity into clear documentation, diagrams, and data structures anyone can navigate.
You own your analysis. We generate standard formats that work with your existing tools — no proprietary databases, no vendor lock-in, no black boxes.
Get analysis in hours, not months. No lengthy procurement, no infrastructure setup, no consulting engagements — just fast, accurate insights when you need them.
The mainframe knowledge crisis is accelerating. Developers who built these systems are retiring. Documentation was never written. Yet the code keeps running — trillions of dollars of transactions per day.
Organizations can't wait for a crisis. LensCodex helps you preserve institutional knowledge before it walks out the door.
Start analyzing COBOL and JCL systems with deterministic precision.
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