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Visualize Legacy Code with Our Cross-Language Documentation Tools
Reveal the structure, logic, and data flows hidden in legacy code.
Our new proprietary tool - LegacyMap - unlocks structured documentation for languages never supported by Doxygen.
Extract procedures, track file and database access, and generate navigable callgraphs for languages like COBOL, FORTRAN, and BASIC. Identify callers and callees, visualize system flows, and accelerate onboarding, audits, and modernization planning—without rewriting a single line.
Documenting Mainframe & OpenVMS COBOL
Generate structured documentation and callgraphs from COBOL code running on Mainframe and OpenVMS systems.
Documenting FORTRAN
Document legacy FORTRAN systems with interactive callgraphs and module maps.
Documenting SQL Table Access
Visualize database access patterns from embedded SQL in legacy codebases.
Documenting C/C++
Generate documentation and procedure maps for OpenVMS C/C++ systems.
Documenting Pascal
Cross-reference and document legacy Pascal systems for modern understanding.
Documenting BASIC
Generate documentation and callgraphs for OpenVMS BASIC systems.
The Big Question: What’s In Your Codebase?
We use intelligent analysis to transform undocumented, legacy systems into fully navigable, cross-referenced documentation. With LegacyMap, your COBOL, FORTRAN, BASIC, Pascal, and C++ systems become visual, searchable, and understandable—without rewriting a single line.
Automatically generate documentation from unstructured code—no manual annotations, no guesswork.
Understand how programs, procedures, and modules interact across large, complex systems.
Visualize logic flows and data access in interactive, cross-referenced formats.
For Oracle, Postgres, and Rdb—pulled straight from your embedded SQL.
including multi-language applications.
Frequently Asked Questions
Want to know more about LegacyMap? Explore our FAQs for more answers - or contact us to start yopur project.
Legacy COBOL systems often lack up-to-date documentation, making them difficult to maintain or migrate. LegacyMap solves this by automating the generation of accurate, detailed documentation that reflects the current state of your system. This reduces operational risk, improves code maintainability, and accelerates digital transformation initiatives involving legacy technologies like COBOL, FORTRAN, BASIC, and embedded SQL.
LegacyMap produces cross-referenced technical documentation in HTML, PDF, and LaTeX formats, compatible with Doxygen workflows. Outputs include callgraphs, file access mappings, procedure trees, and SQL access flowcharts. This documentation is fully searchable and ideal for developer onboarding, system audits, and modernization projects.
Absolutely. LegacyMap is designed to work across OpenVMS COBOL (including VAX and Alpha systems) and Mainframe COBOL running on z/OS. The tool accommodates platform-specific dialects and embedded SQL formats, giving IT teams a unified documentation workflow for legacy infrastructure. Whether you’re rehosting to Linux or preparing for cloud modernization, LegacyMap delivers the insights you need.
Yes. LegacyMap extracts and visualizes embedded SQL operations such as SELECT, INSERT, UPDATE, and DELETE from COBOL and Pro*COBOL code. It maps SQL table access by program and procedure, making it easier to audit data interactions, refactor database logic, or prepare for migrations to PostgreSQL, Oracle, or cloud-native databases.
LegacyMap is a software tool that automatically generates structured documentation from legacy COBOL applications, including those running on Mainframe and OpenVMS platforms. It analyzes COBOL source code to produce detailed callgraphs, SQL access diagrams, and procedure maps—without requiring any changes to your original code. LegacyMap is ideal for teams looking to modernize, audit, or maintain legacy COBOL systems while preserving institutional knowledge.
