IBM i / AS/400 / RPGLE

Modernise your
fixed-format RPG
in seconds

rpgconvert.io automatically converts RPG III and fixed-format RPGLE to fully free-format source. Accurate, instant, and built by IBM i developers for IBM i developers.

▶ Start Converting Free See how it works

570+ Test cases passing

6 Spec types handled

100% Runs in your browser

CUSTMAINT.rpgle

Before — Fixed Format

     H DFTACTGRP(*NO)
     FCUSTFILE   IF   E  K DISK
     D CustName       S             50A
     D CustBal        S              9P 2
     C                   CHAIN     CustKey
     C                   IF        %FOUND
     C                   EVAL      CustBal=0
     C                   UPDATE    CUSTREC
     C                   ENDIF
     C                   EVAL      *INLR=*ON

After — Fully Free

ctl-opt DFTACTGRP(*NO);
dcl-f CUSTFILE disk keyed;

dcl-s CustName char(50);
dcl-s CustBal packed(9:2);

chain CustKey CUSTFILE;
if %found(CUSTFILE);
  CustBal = 0;
  update CUSTREC;
endif;
return;

→

Process

Three steps to modernised code

No installation, no configuration, no risk. Your source code never leaves your browser.

⬆

Upload or paste your source

Drop in a raw RPGLE source member, a SEU export, or even a printed spool file listing. We handle all common AS/400 source formats automatically.

⚡

Convert in milliseconds

Our conversion engine — built on 570+ test cases — handles H, F, D, C, and P specs. All opcodes, indicators, BIFs, and continuation lines are processed accurately.

⬇

Download ready-to-compile code

Copy to clipboard or download a clean .rpgle file ready to load into RDi, VS Code, or directly into your IFS. Any unconverted patterns are clearly flagged.

Capabilities

Everything the conversion requires

Built specifically for the IBM i ecosystem — not a generic code formatter.

🧠

Full spec coverage

H-specs to ctl-opt, F-specs to dcl-f, D-specs to dcl-s/dcl-ds, C-spec opcodes, and P-spec procedure boundaries — all handled.

📋

Spool file support

Automatically detects and strips PRTSRC spool listing headers, sequence numbers, and date columns before converting.

⚡

BIF modernisation

Upgrades legacy opcodes to modern BIFs where possible: MOVE/MOVEL to assignments, Z-ADD to simple eval, and more.

📊

Indicator conversion

*IN01–*IN99, *INLR, *INOF and conditioning indicators are all resolved to readable boolean expressions.

🔒

Runs entirely in-browser

Your source code is never uploaded to a server. Conversion happens locally in your browser — safe for proprietary and client code.

💬

Clear TODO markers

Complex patterns that need manual review are flagged with [TODO:] comments so nothing is silently lost or misconverted.

Coverage

What rpgconvert.io handles

Opcodes & Constructs

DOW / DOU / FOR loops with all variants
IF / ELSEIF / ELSE / ENDIF
SELECT / WHEN / OTHER / ENDSL
CHAIN, READ, READE, READP, WRITE, UPDATE, DELETE
SETLL, SETGT, EXFMT, OPEN, CLOSE, UNLOCK
EXSR, BEGSR, ENDSR, LEAVESR
CALL, CALLP, PARM, RETURN
EVAL, EVALR, Z-ADD, Z-SUB, ADD, SUB, MULT, DIV
MOVE, MOVEL, MOVEA (with guidance)
COMP, CASxx, ANDxx, ORxx
SUBST, SCAN, XLATE, CAT, CHECK, CHECKR
SETON, SETOF for *INLR and indicators

Source Formats & Features

RPG III (fixed-format only)
RPGLE fixed-format
Mixed /FREE and fixed-format source
SEU sequence numbers (000100, 000200…)
PRTSRC / DSPF spool file listings
Qualified data structures (QUALIFIED keyword)
Multiple-occurrence data structures (OCCURS)
INFDS and file information DS
Procedure interfaces (dcl-pi / dcl-pr)
ILE service program exports
Prototyped calls with OPTIONS(*NOPASS)
Compiler directives (/IF, /DEFINE, /COPY)

Pricing

Simple, transparent pricing

Start free. Upgrade when you need more.

Free

$0 / forever

Perfect for trying it out or occasional conversions.

✓ 3 conversions per day
✓ Any file size
✓ All spec types
✓ Copy to clipboard
✗ Download .rpgle file
✗ Conversion history
✗ Batch upload

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Modernise yourfixed-format RPGin seconds