RPG to Java Converter

Transform IBM i RPG programs into modern Java OOP code automatically

Developed by Dr. Milind Talele Send Feedback

AI-Powered Conversion
Intelligent code transformation

Upload RPG Files

Multiple files supported

Drag & drop RPG files here

or click to browse — multiple files OK

.rpg, .rpgle, .sqlrpgle, .txt (max 5MB each)

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Conversion Complete

Attribute RPG File Java File
File Name — —
Lines of Code — —
File Size — —
Language RPGLE Java

Code Viewer

RPG Code RPGLE
Java Code Java
Program Structure Diagram
AI-generated visualization — class relationships and method call tree

Generating diagram with AI...

Analyzing class relationships and call tree

Program Documentation
AI-generated technical and functional documentation for this program

Generating documentation with AI...

Analysing program logic, structure and business rules

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Your converted Java code will appear here after conversion

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About the IBM i RPG to Java Converter

The go-to tool for AS/400 modernization — automatically migrating legacy IBM RPG programs to production-ready Java OOP code.

RPG to Java Conversion

Automatically converts IBM i RPG source files — including RPGLE, ILE RPG free-form, fixed-form RPG IV, and SQLRPGLE — into clean, modern Java OOP classes with JDBC repository patterns.

AS/400 & IBM i Modernization

Reduce AS/400 mainframe costs, hire Java developers instead of RPG specialists, enable cloud migration, and integrate with Spring Boot, REST APIs and modern CI/CD pipelines.

Supported RPG Dialects

Supports RPGLE, SQLRPGLE, ILE RPG (free-form & fixed-form), RPG III, RPG IV, RPG/400, and embedded SQL RPG programs from IBM i (OS/400) and AS/400 systems.

AI-Generated Documentation

Every conversion produces a full technical and functional specification — business logic flow, input parameters, database operations, procedure map, and Java architecture overview.