IBM z/OS Mainframe & Core Banking Modernization Suite
COBOL Copybook to JSON, TypeScript & Python Converter
Decompile legacy COBOL Copybooks into modern JSON Schema, TypeScript Interfaces, Python Pydantic models, SQL DDL, and calculate exact LRECL memory byte offsets.
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Strategic Context & How To Use:
Mainframe integration teams and modern API developers often receive raw COBOL copybooks containing complex hierarchical levels, implicit decimals (`PIC 9(7)V99`), packed decimals (`COMP-3`), and recurring tables (`OCCURS`). Paste any copybook below to instantly generate clean API contracts (JSON/TypeScript), backend validation models (Pydantic), and inspect exact byte offsets for binary record unpacking.
Input COBOL Copybook
Total Estimated LRECL:
0 Bytes
Total Fields Parsed:
0 Fields
| Level | Field Name | PIC Clause | Usage | Bytes | Offset (Start–End) |
|---|