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
Curious about how Sector7 can facilitate your application migration? Explore our FAQs for expert insights.
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.
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.
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.
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.
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.
At Sector7, we prioritize quality and reliability in every migration project. Our team employs a rigorous quality assurance process, including extensive testing and validation, to ensure that the migrated applications function identically to the originals. With a focus on “Bug for Bug compatibility,” we aim to maintain the integrity of your applications throughout the migration process, leveraging our decades of industry experience to handle even the most complex projects.
Sector7 serves a diverse range of industries, including finance, healthcare, telecommunications, and technology. Our expertise in software migrations enables us to assist organizations across various sectors, helping them modernize their systems while minimizing disruption. Whether you’re a small business or a large enterprise, we have the skills and knowledge to support your migration needs effectively.
Sector7 stands out due to our commitment to customer satisfaction and our deep understanding of legacy systems. With over 35 years of experience in developing migration solutions, we have honed our expertise in translating complex OpenVMS applications to modern languages like C++. Our innovative tools, like VX/Pascal, and our continuous integration practices ensure that our clients benefit from efficient, reliable, and high-quality migration outcomes.
Absolutely! We encourage prospective and current clients to schedule a consultation to explore their migration needs more thoroughly. During this meeting, our experts will work with you to understand your project requirements, discuss potential solutions, and answer any questions you might have. To set up a consultation, simply fill out the contact form and indicate your interest, or reach out to us directly via email or phone. We’re eager to partner with you and ensure your migration process is as smooth and successful as possible.
To begin the process, simply fill out our contact form or give us a call. Our team will work closely with you to understand your needs, assess the scope of the project, and develop a customized plan for migrating your legacy systems.
