RecodeX logo

Our automated, deterministic transpilers help you modernize your legacy applications - 

accurately, quickly, safely - with no vendor lock-in
Work with us

About RecodeX®

  • Founded in 1976 as Micro-Processor Services, RecodeX develops automated transpilers that convert legacy applications into modern programming languages.
  • Our platform enables enterprises to modernize mission-critical systems written in languages such as COBOL, PL/I, Fortran, Pascal, and Assembly, converting them into modern languages including Java, C, C++, and C#.
  • RecodeX has been deployed in over 2,000 legacy modernization projects, providing global enterprises with a reliable, automated alternative to manual code refactoring.
  • Our tools enable organizations to modernize legacy systems quickly, accurately, and safely — within their own environments, and don't require lock-in to specific platforms or proprietary runtime libraries

What Makes RecodeX Different

100% automated

Not just a “developer assistant.” Refactor legacy code in minutes - not months

Unmatched accuracy

Refined on over 300 million lines of code to achieve >97% line-level accuracy  

Language coverage

Transpile nearly all legacy languages at dialect level to most modern languages

Code Security

Designed for direct use by your engineers - sensitive code never leaves your premises

Deterministic

Not a black box; won't hallucinate, miss requirements or degrade with scale

Broken chain

No Lock-In

Your translated code and Customer Interface Library are yours - deploy on any platform with no ongoing licensing.

Why Our Experience Matters

For 38 years, we’ve been building automated transpilers that empower our clients to independently refactor their legacy code

Experience = 97%+ Accuracy

Our dialect-specific parsers have been refined over 300 million lines of code

Our permissioned library of 300+ legacy applications continually tests and improves our transpilation engines

We've been refining these algorithms for 38 years - significantly longer than most competitors

Other transpilers have 80-85% line-level accuracy

LLMs deliver 40-60% accuracy

Faster & More Cost-Effective

Because RecodeX is fully automated, we can process 25,000+ lines in minutes

We deliver this excellent quality at 5-10% of the cost of manual refactoring

No vendor or platform lock-in; you own your code - including any Customer Interface Libraries

It can take a year to manually refactor a single application. And that can cost 10x more than RecodeX

RecodeX vs. Competitors

Lowest Risk

Our methodology guarantees full functional equivalence, meaning no missed business requirements

Our algorithms are deterministic (not probabilistic, and not a black box)

We designed our transpilers for direct client use, so sensitive code never leaves their premises

LLMs can miss (or hallucinate) business requirements

Other transpilers require dedicated services teams 

Current State of LLM Translation

Languages We Support

We support most legacy programming languages at the dialect level

Legacy Language

Dialects already supported

COBOL

COBOL 68, COBOL 74, COBOL 85, COBOL 85 Win32, RM/COBOL, MF/COBOL, IBM COBOL, COBOL II, COBOL II Win32, AS400 COBOL, ACUCOBOL - 85, ACUCOBOL - GT, CA-Realia COBOL , LIANT COBOL , NET EXPRESS COBOL , VISUAL COBOL, PRO*COBOL, 2000COBOL, OPEN COBOL, GNU COBOL, BULL TDS COBOL, BULL COBOL, DIGITAL COBOL, VAX COBOL, PRIME COBOL, IBM COBOL FOR OS/390 & VM, FUJITSU COBOL 85 , HITACHI 2000 COBOL, HP COBOL, HP COBOL II, IBM COBOL AIX, COBOL FOR OS/360, Enterprise COBOL for z/OS, HITACHI 2002 COBOL, TANDEM COBOL 85, UNISYS COBOL 74, UNISYS COBOL 85, VS COBOL II

Product Info

PASCAL

Borland Turbo Pascal version 3.0, Borland Turbo Pascal version 7.0, Microsoft Pascal, HP-UX Pascal, Oregon Software Pascal, VAX Pascal, Modula 2 Pascal, TI Pascal, Object Pascal, SVS Pascal, Workshop Pascal (Macintosh), Sun Pascal, HP Pascal/64000, IBM AIX Pascal, Tektronix Pascal, Delphi Pascal, Pro-Pascal, MVS Pascal, Honeywell Pascal TotalPlant Alcont and Printa, Object Pascal Delphi for Windows

Product Info

Assembly

Atmel AVR, ASM 51, ASM 96, ASM 360, ASM 370, ASM 390, ASM 68k, ASM 680xx, ASM 86, MASM, Power, PowerPC, RASM/ASM68xx, TASM, HLASM, HP 6400 ASSEMBLER 8o88 / 8o86, HP B1449 ASSEMBLER 8o86 / 8o186, SEL, Systems Engineering Laboratories Assembly

Product Info

Fortran

Fortran 77, Fortran 90, Fortran 95, Fortran 2018

Product Info

PL/I

PL/C Cornell University, PL/I for IBM series 1, PL/I - D IBM PL/I subset, PL/I - F IBM full language, DRI PL/I - D Digital Research subset, IBM optimizer PL/I - DOS, IBM optimizer PL/I - OS, ANSI X3.7-1987 PL/I subset, ANSI X3.53-1976 / ISO 6160 - 979 PL/I, Prime PL/I, Stratus PL/I, Data General PL/I, VAX PL/I

Product Info

PL/M

PL/M 51, PL/M 80, PL/M 86, PL/M 96, PL/M 186, PL/M 286, PL/M 386
Product Info
COBOL
COBOL 68, COBOL 74, COBOL 85, COBOL 85 Win32, RM/COBOL, MF/COBOL, IBM COBOL, COBOL II, COBOL II Win32, AS400 COBOL, ACUCOBOL - 85, ACUCOBOL - GT, CA-Realia COBOL , LIANT COBOL , NET EXPRESS COBOL , VISUAL COBOL, PRO*COBOL, 2000COBOL, OPEN COBOL, GNU COBOL, BULL TDS COBOL, BULL COBOL, DIGITAL COBOL, VAX COBOL, PRIME COBOL, IBM COBOL FOR OS/390 & VM, FUJITSU COBOL 85 , HITACHI 2000 COBOL, HP COBOL, HP COBOL II, IBM COBOL AIX, COBOL FOR OS/360, Enterprise COBOL for z/OS, HITACHI 2002 COBOL, TANDEM COBOL 85, UNISYS COBOL 74, UNISYS COBOL 85, VS COBOL II
Data Sheets
PASCAL
Borland Turbo Pascal version 3.0, Borland Turbo Pascal version 7.0, Microsoft Pascal, HP-UX Pascal, Oregon Software Pascal, VAX Pascal, Modula 2 Pascal, TI Pascal, Object Pascal, SVS Pascal, Workshop Pascal (Macintosh), Sun Pascal, HP Pascal/64000, IBM AIX Pascal, Tektronix Pascal, Delphi Pascal, Pro-Pascal, MVS Pascal, Honeywell Pascal TotalPlant Alcont and Printa, Object Pascal Delphi for Windows
Data Sheets
Assembly
Atmel AVR, ASM 51, ASM 96, ASM 360, ASM 370, ASM 390, ASM 68k, ASM 680xx, ASM 86, MASM, Power, PowerPC, RASM/ASM68xx, TASM, HLASM, HP 6400 ASSEMBLER 8o88/8o86, HP B1449 ASSEMBLER 8o86/8o186, SEL, Systems Engineering Laboratories Assembly
Data Sheets
Fortran
Fortran 77, Fortran 90, Fortran 95, Fortran 2018
Data Sheets
PL/I
PL/C Cornell University, PL/I for IBM series 1, PL/I - D IBM PL/I subset, PL/I - F IBM full language, DRI PL/I - D Digital Research subset, IBM optimizer PL/I - DOS, IBM optimizer PL/I - OS, ANSI X3.7-1987 PL/I subset, ANSI X3.53-1976 / ISO 6160 - 1979 PL/I, Prime PL/I, Stratus PL/I, Data General PL/I, VAX PL/I
Data Sheets
PL/M
PL/M 51, PL/M 80, PL/M 86, PL/M 96, PL/M 186, PL/M 286, PL/M 386
Data Sheets

Modern Languages

JAVA, C, C++, C#, XML, VB.Net and more

How We Help You

Secure: Your engineers perform the transpilation on-premises in a non-prod environment - you retain full control over your code at all times

Documented: Automatically generate structured legacy code documentation

Accurate: Built-in QA includes:

  • Visual checks (Source embedded in Target)

  • Target code compilation

  • Validation tests 

  • Readability / maintability scores

Simple: Integrated Theia IDE makes debugging fast and intuitive

Supported: Just send us error logs—we’ll fine-tune the transpiler for your code’s dialect and structure, free of charge

  • RecodeX IDE welcome screen
  • RecodeX IDE screen showing successful transpilation
  • RecodeX IDE screen showing successful compile

Our Technology

How our proprietary technology helps you refactor legacy code to modernize legacy applications

Illustration of RecodeX's tertiary language technology. We translate all source languages into a proprietary tertiary language, which is, in turn, translated into the modern languageIllustration of RecodeX's tertiary language technology. We translate all source languages into a proprietary tertiary language, which is, in turn, translated into the modern language
Our automated transpilers converts legacy code into a proprietary tertiary language using a deterministic algorithm
Then we convert the tertiary language to modern code (using a second deterministic algorithm)
This methodology guarantees functional equivalence and delivers unmatched accuracy
Our platform is easily scalable to support new languages and dialects

Our Clients

Financial and Information Services
Bank of America logoCiti logoCapital One logoAIG logoThomson Reuters logoFair Isaac (FICO) logoAcxiom logo
Government
US Social Security Administration (SSA) logoUS Navy logoUS Central Command logoUS Department of Energy logoUS Department of Labor logoStatistics Canada logoTransport Canada logo
Aerospace & Defense
General Electric (GE) logoRaytheon Technologies logoHoneywell logoAirbus logoBoeing logoLockheed Martin logoNorthrop Grumman logoGeneral Dynamics logoBAE Systems logo
Manufacturing
General Electric (GE) logoSiemens logoABB logoBayer logoDow Chemical logoDuPont logoRockwell Automation logo
Tech & Telecom
T-Mobile logoChina Mobile logoVerizon logoComcast logoAT&T logoDetsche Telekom logoSoftBank Group logo
Implementation Firms
Accenture logoCapgemini logoPWC logoTata Consultancy Services logoUnisys logo

Since 1976, we have served over 2,000 global clients in all major industries and successfully partnered with Implementation Firms

  • Financial and Information Services
    Bank of America logoCiti logoCapital One logoAIG logoThomson Reuters logoFair Isaac (FICO) logoAcxiom logo
  • Government
    US Social Security Administration (SSA) logoUS Navy logoUS Central Command logoUS Department of Labor logoUS Department of Energy logoStatistics Canada logoTransport Canada logo
  • Aerospace & Defense
    General Electric (GE) logoRaytheon Technologies logoAirbus logoBoeing logoLockheed Martin logoNorthrop Grumman logoGeneral Dynamics logoBAE Systems logo
  • Manufacturing
    General Electric (GE) logoSiemens logoABB logoBayer logoDow Chemical logoDuPont logoRockwell Automation logo
  • Tech & Telecom
    T-Mobile logoChina Mobile logoVerizon logoComcast logoAT&T logoDetsche Telekom logoSoftBank Group logo
  • Implementation Firms
    Accenture logoCapgemini logoPWC logoTata Consultancy Services logoUnisys logo
Client case studies
View more

Work With Us

Ready to proceed?

Email us at sales@recodex.co, call us at (917) 410-0690, or use this contact form to tell us about your legacy software modernization project for an immediate quote.

Want to see it live?

We’ll walk you through a free demo showing thousands of lines transpiled in real time.

Prefer to test it yourself?

New enterprise clients receive one complimentary pilot transpilation—no strings attached.