About Sitemule Open

Enterprise-Ready Open Source for IBM i Modernization

In today’s dynamic digital economy, enterprises are under increasing pressure to modernize their legacy systems while maintaining the reliability and efficiency that have long been the hallmark of IBM i (AS/400). Sitemule Open provides the perfect bridge between trusted legacy environments and modern, API-driven architectures. This comprehensive suite of open-source tools empowers organizations to introduce JSON/XML processing, RESTful APIs, microservices, and cloud connectivity to their IBM i platforms - all without license fees or vendor lock-in.

Modernize Without Disruption

Sitemule Open allows enterprises to upgrade their IBM i applications seamlessly. Developers can integrate advanced functionalities such as JSON/XML processing, web APIs, and microservices without rewriting core systems or disrupting existing business processes. This approach ensures that modernization efforts enhance reliability rather than compromise it.

Full API and Cloud Connectivity

Through its integrated open-source ecosystem, Sitemule Open makes it possible to expose Db2 data as RESTful APIs and connect IBM i directly to cloud services, ERP systems, and external applications. These connections are established without the need for complex middleware, offering both simplicity and performance. Businesses can now integrate their IBM i systems into multi-platform digital ecosystems effortlessly.

Enterprise-Grade Open Source

While open source provides cost-efficiency and flexibility, enterprises often face challenges in implementation, documentation, and long-term maintenance. Sitemule bridges that gap by offering expert support as part of its Sitemule Platform subscription. This ensures that open-source solutions are not only accessible but also sustainable and secure for enterprise use. The combination of open-source freedom and enterprise-grade reliability makes Sitemule Open a strategic modernization choice.

A Unified Modernization Framework

Sitemule Open brings together four specialized open-source projects - noxDB, noxDbAPI, ILEastic, and ILEvator - into one cohesive modernization toolkit. Each component addresses a specific modernization challenge, yet together they form a unified ecosystem for transforming IBM i into a modern, connected platform.

“In a fast-moving digital economy, Sitemule Open provides the perfect bridge between trusted legacy IBM i environments and modern, API-driven architectures - empowering organizations to add JSON/XML processing, RESTful APIs, microservices, and cloud connectivity - all without license fees or vendor lock-in.”

noxDB

Advanced JSON and XML Processing

noxDB is a high-performance open-source library designed to simplify JSON and XML parsing, generation, and transformation within IBM i applications. It enables direct SQL-to-JSON conversion, allowing developers to integrate structured data with modern web and mobile applications.
noxDB’s seamless integration with both document stores and SQL data sources allows IBM i applications to participate in data-driven workflows with minimal coding. This makes it ideal for organizations aiming to integrate IBM i data with cloud platforms or API-based systems.

Use Case: Modern Data Integration

A manufacturing firm can use noxDB to convert Db2 data into JSON format for real-time exchange with a cloud-based analytics service, enabling instant insights without altering its legacy codebase.

noxDbAPI

Seamless Exposure of Db2 as RESTful Services

Building upon noxDB, noxDbAPI provides a structured framework for exposing Db2 stored procedures, functions, and views as RESTful web services. It includes built-in OpenAPI (Swagger) documentation, allowing developers and external systems to interact easily with IBM i data through standard HTTP interfaces.

By adopting JSON-based communication, noxDbAPI ensures compatibility with modern applications, analytics platforms, and third-party services.

Use Case: API-Driven Business Intelligence

A financial services company can use noxDbAPI to expose real-time Db2 data to a web-based dashboard, empowering executives with up-to-date operational metrics accessible from any device.

ILEastic

A Lightweight Web Server for IBM i

ILEastic introduces a self-contained, high-performance web server for building and hosting microservices directly on IBM i. Unlike traditional web servers that require external components, ILEastic runs natively, supporting efficient multi-threaded operations and seamless integration with RPG and other ILE languages.

It is an ideal choice for organizations looking to modernize legacy RPG applications by transforming business logic into modular, web-accessible microservices.

Use Case: Microservices for Legacy Application Modernization

An insurance company can utilize ILEastic to convert core policy management functions into microservices, enabling integration with web portals and mobile apps while preserving existing RPG logic.

ILEvator

Native HTTP Client for External Connectivity

ILEvator is a native IBM i HTTP client that enables RPG and ILE-based applications to consume external RESTful APIs securely and efficiently. It supports Unicode URLs for global compatibility and is optimized for lightweight, high-speed communication.

This capability allows IBM i applications to interact directly with modern cloud services, payment gateways, and other web-based platforms without intermediary systems.

Use Case: Cloud Service Integration

A logistics provider can use ILEvator to connect IBM i applications with a third-party shipment tracking API, offering customers live updates on their deliveries via a modern web interface.

A Complete Modernization Ecosystem

Together, the four Sitemule Open components form a comprehensive modernization framework:

• noxDB transforms Db2 data into structured JSON for easy web and mobile integration.

• noxDbAPI exposes database functions as RESTful APIs for cross-platform data access.

• ILEastic provides a native environment for hosting IBM i microservices.

• ILEvator connects IBM i applications to external APIs and cloud platforms.

This tightly integrated ecosystem allows enterprises to evolve their IBM i environments incrementally, adding modern capabilities while preserving existing investments. The result is a more agile, interoperable, and future-ready system architecture.

Unlock the Future of IBM i Modernization

Sitemule Open redefines what open source can achieve for IBM i environments. By combining free-to-use tools with optional enterprise-level support, it empowers organizations to modernize efficiently, securely, and sustainably.

With Sitemule Open, IBM i developers no longer face a choice between stability and innovation. They gain both - the reliability of a proven platform and the flexibility of open-source modernization.

Now is the time to embrace the next generation of IBM i capabilities. Explore Sitemule Open today and take the first decisive step toward a modern, connected, and future-ready enterprise.