COBOL-REKT, a toolkit for analysing and reverse-engineering COBOL
This is an evolving toolkit of capabilities helpful for analysing and reverse engineering legacy Cobol code. Currently, the following capabilities are available: - Program / Section-level flowchart generation based on AST (SVG or PNG) - Parse Tree generation (with export to JSON) - Control Flow Tree generation (with export to JSON) - Allows embedding code comments as comment nodes in the graph - The SMOJOL Interpreter (WIP) - Injecting AST and Control Flow into Neo4J - Injecting Cobol data layouts from Data Division into Neo4J (with dependencies like MOVE, COMPUTE, etc.) + export to…
COBOL-REKT, a toolkit for analysing and reverse-engineering COBOL launched on August 15, 2024 with 91 votes, #681 of 5,471 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
COBOL-REKT is a toolkit for analyzing and reverse-engineering legacy COBOL code. It generates flowcharts, parse trees, and control flow diagrams from COBOL programs, with exports to SVG, PNG, and JSON. The toolkit can inject code structures and data layouts into Neo4J databases, includes an experimental interpreter, and integrates with GPT for automated code summarization. It is designed for developers and maintainers working with older COBOL systems.
written from the facts on this page · September 2026
From the sources
An evolving toolkit of capabilities helpful for reverse engineering legacy Cobol code - avishek-sen-gupta/cobol-rekt
In the maker’s words, at launch
This is an evolving toolkit of capabilities helpful for analysing and reverse engineering legacy Cobol code. Currently, the following capabilities are available: - Program / Section-level flowchart generation based on AST (SVG or PNG) - Parse Tree generation (with export to JSON) - Control Flow Tree generation…
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