COBOL Documentation, Analysis, and Dependency Mapping in Hours
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Deterministic analysis + expert review → audit-ready artifacts
COBOLpro automates COBOL documentation and lineage, ties SME knowledge to code, and produces evidence your teams and auditors can trust—without disrupting batch windows.
True Static Analysis.
Not LLM Hallucinations.
COBOLpro doesn't just "read" code—it parses it. Our engine uses formal ANTLR lexers and parsers to build a mathematically correct model of your legacy application, ensuring 100% accuracy in data lineage and impact analysis.
ANTLR4 Grammar
Custom-built COBOL grammar handling 800+ language keywords and vendor extensions (IBM, Micro Focus)
Abstract Syntax Tree
Full AST generation preserves code structure, comments, and execution flow for precise analysis
Symbol Resolution
Advanced symbol table maps variable scopes, copybook dependencies, and data definitions
Control Flow Graph
Deterministic CFG construction maps every possible execution path (PERFORM, GO TO, FALLTHROUGH)
Uncover BuriedBusiness Rules.
Stop guessing what your code does. We extract the actual business logic hidden inside millions of lines of spaghetti code, converting obscure COBOL conditions into clear, actionable business rules ready for modernization.
Logic Isolation
Slices execution paths to isolate decision blocks (IF/EVALUATE) from I/O boilerplate
Variable Tracing
Back-traces critical variables to their origin sources (DB2 tables, VSAM files)
Rule Synthesis
Translates technical conditions into human-readable "WHEN-THEN" business statements
Knowledge Leaving the Building
Critical business logic lives in people and code comments. As SMEs retire, teams lose the context needed to make safe changes.
Slow, Risky Change
Changes are made without understanding full impact, leading to production issues and audit failures.
Audit & Outage Exposure
Opaque data flows and missing lineage create audit friction and increase the chance of incidents during peak periods.
How COBOLpro Works
Transform your legacy COBOL systems in three simple steps
- Step 01Complete system overviewFile-level mappingApplication architecture visualization
Map of Your System
Get a complete overview of the system, in file, application and program level to fully comprehend the architecture and design of the application.
Key highlights- Complete system overview
- File-level mapping
- Application architecture visualization
- Program structure analysis
- Step 02Autonomous explanation generationUML diagram creationUser flow visualization
Understand Dependencies
Autonomously generate explanations, UML diagrams, user diagrams, and flowcharts to provide context and clear explanations of the code. See screen variables, job flows, and understand every single program that is making your company run.
Key highlights- Autonomous explanation generation
- UML diagram creation
- User flow visualization
- Screen variable analysis
- Job flow documentation
- Step 03Business rule extractionSpecification documentationModernization roadmapping
Create Specifications
Understand and reverse engineer your business rules to fast-track modernization and give non-technical people results of the current specifications.
Key highlights- Business rule extraction
- Specification documentation
- Modernization roadmapping
- Non-technical stakeholder reports
Ready to Understand Your Legacy Systems?
Get a complete mapping of your COBOL architecture and business logic with comprehensive documentation and specifications.
✓ No disruption to existing systems ✓ Enterprise-grade security ✓ Complete system documentation
Three Pillars. One Outcome: Safe Modernization.
A unified flow: Static Analysis produces evidence → CLIP captures SME knowledge → IDE operationalizes fixes. Start simple, reveal more detail as you go.
System Mapping Engine
Comprehensive System Architecture Analysis
Advanced analysis technology that creates complete overviews of your COBOL systems at file, application, and program levels to fully comprehend architecture and design.
Key Capabilities:
- File-level system mapping
- Application architecture visualization
- Program structure analysis
- Component identification
- System hierarchy documentation
Dependency Analysis Platform
Autonomous Understanding Generation
Autonomously generates explanations, UML diagrams, user diagrams, and flowcharts to provide context and clear explanations of the code and dependencies throughout your systems.
Key Capabilities:
- Autonomous explanation generation
- UML diagram creation
- User flow visualization
- Screen variable analysis
- Job flow documentation
- Program dependency mapping
Business Specifications Engine
Rules and Modernization Specifications
Understands and reverse engineers business rules to fast-track modernization and provide non-technical stakeholders with clear specifications of current systems and requirements.
Key Capabilities:
- Business rule extraction
- Specification documentation
- Modernization roadmapping
- Non-technical stakeholder reports
- Compliance documentation
Unified Platform, Comprehensive Solution
Unlike fragmented point solutions, COBOLpro provides an integrated approach that addresses documentation, knowledge retention, and ongoing maintenance in one cohesive platform.
Deterministic Analysis + AI Assistance
COBOLpro is a deterministic static code analyzer with COBOL‑specific parsers and rules. AI is used as an assistant—grounded on artifacts—not as a black box. Outputs are repeatable, reviewable, and audit‑ready.
Static Analysis & COBOL Parsers
Lexers/parsers per dialect, control/data‑flow graphs, copybook resolution, and I/O mapping produce deterministic artifacts.
Rules Engine & Domain Heuristics
COBOL idioms, JCL patterns, CICS/DB2 access, and error‑handling conventions are encoded as rules for consistent findings.
Repeatable, Audit‑Ready Outputs
Call graphs, I/O maps, field‑level lineage, and JCL schedules are versioned and exportable (PDF/HTML/JSON/Git).
Where AI Helps (and Where It Doesn't)
- Grounded summaries: AI explains code paths and artifacts using Retrieval‑Augmented Generation (RAG) strictly from outputs.
- IDE assistance: estate‑aware hints for navigation, guardrails, and best practices.
- No model training on your code: customer code is never used to train models; analysis is read‑only.
- Determinism first: authoritative sources are static analysis artifacts and rules; AI never overrides them.
Capability Comparison
COBOLpro vs AI-Only Tools vs Manual Process
Trusted by Enterprise Leaders
From critical banking systems to healthcare processing and manufacturing operations. Organizations worldwide trust COBOLPro for their legacy system continuity needs.
Platform + Managed COBOL, Under One Roof
Use the COBOLpro platform to document and govern your estate—and add Managed COBOL whenever you want us to run it for you with SLAs.
Get a comprehensive analysis of your COBOL systems and documentation gaps
See how COBOLpro works with your actual codebase and use cases
Work with our COBOL specialists to accelerate your modernization journey