Commercial Support for jPOS
jPOS Diagram

The de-facto open source implementation of the international ISO-8583 standard

jPOS.org Project

Java® based jPOS provides an open source software bridge between ISO-8583-based messages and your internal processing networks and systems. Whether an organization is tracking millions of transactions daily or tens of thousands, jPOS can be implemented to create a clean, efficient financial solution for handling data associated with all transactions in a PCI compliant way.

Learn more
Extreme Reliability

Strategic freedom and lower cost of open source

Peace of mind of a 10+ years active project, downloaded 100,000+ times with 2,000+ developers and an active community.



Marketplace proven extreme performance and reliability

Processing millions of transactions per day in 80+ countries in 5 continents.

  • jPOS

    jPOS is a Java® platform-based, mission-critical, ISO-8583 based financial transaction library/framework that can be customized and extended to implement financial interchanges.

  • jPOS-EE

    Makes the most out of jPOS by providing developers with the business logic, rules and database connectivity required by financial interchanges, transaction switches and other sophisticated systems.

  • jPOSware

    A familiy of jPOS related products like jCARD, jPTS, Programmer's Guide, ISO/Bridge and the ISO-8583 C lightweight library.

  • jPOS.org

    Visit the jPOS Project Website to download jPOS Community Version and check the available free resources like API Docs, source code, related blogs and mailing lists.

jPOS.org Project up to date:

jPOS 2.1.2 and jPOS-EE 2.2.5 are out. // jCard under the "Business Source License" // Gradle Project now default for jPOS builds // Updates for jPOS CMF

jPOS UsersFrom Fortune 500 companies to small retailers

3pea 4c_group abercrombie_fitch advam african-bank afripay altimetrik anz_bank aon appi asseco aurora_financial aurus axes-payment banco_atlantida bank-dki bca bell-id blackhawk Cabal capgemini capita capitalone cardsmith cellulant coralpay cts_inc Cubika davinta dbm DialectPayments expercash firstdata fixedandmobile Foton FrameTexx ganart hip hitachi huawei Ingedigit ingenico ISTS itconsortium its Jethroltd listo Litle LogicaCMG manipal Mastercard mFoundry midoco mobipay mPay netspend ok_bank otp parasoft PayAutomata Paybox Pronto qualcomm qualpay RewardsCo rol Safeway sarvatra sharedpay SinaptIQ sistarbanc SoEasyPay softek software_ag sqs SunGard TelefonicaES tk_skok towarzystwo Trivnet Truelink UGSPay usaa VisionaAG WaySystems xl_axiata

jPOS.org Community ActivityRants, raves, questions and more from jPOS.org's vibrant community

I am trying to send messages to two different host at the same, just to save some time during processing, and later compare the result of the two request. How can I get this done without having one to wait for the other.

jPOS User list

Hi am new to jpos development . how we can implement in variable length sub Field. For fix length field i goggled and found the solution but for variable length sub field how we can implement.? can some one share the sample code ... and xml file .

jPOS User list

Suggest a test case for a newly deployed jPOS instance? I am learning about jPOS, and currently have deployed an experimental instance. Could you please suggest a test to test it? I am thinking of the following test: install a jPOS simulator of processing bank, connect the jPOS instance to the simulator, then initiate a testing transaction. Does it sound like a good way to go?

jPOS User list
100,000+ downdloads // 2000+ developers// 100+ countries // In use 24/7 processing thousands of TPS