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OpenLegacy + Amazon Web Services: Better together

Transform Your Core. Accelerate Your Future on AWS.

Risk-Free, Agile Mainframe Modernization to the Cloud with OpenLegacy - Move 10x Faster. Reduce Costs by 45%. Zero Business Disruption.

OpenLegacy delivers proven business results at a speed that manual rewrites cannot match. With an 8-10x increase in migration velocity, organizations can move from assessment to a production-ready pilot in just 2 to 4 weeks. This speed is backed by a validated 353% ROI as recognized by the AWS Mainframe Modernization Competency.


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The "Dual Factory" Modernization Model

OpenLegacy is the only platform that offers a simultaneous two-pronged strategy: an Integration Factory and a Migration Factory. While the Integration Factory rapidly creates APIs to support immediate digital innovation (augmentation), the Migration Factory refactors legacy code into AWS-native microservices. This allows enterprises to innovate today while systematically migrating core workloads for tomorrow.

Middleware-Free Native Integration

Unlike traditional solutions that rely on complex, high-latency middleware (such as ESBs, MQ, or CTG), OpenLegacy uses direct native access to the legacy core (COBOL, CICS, IMS, and IBM i). By bypassing these fragile layers, OpenLegacy eliminates the "middleware tax," significantly reduces mainframe processing costs, and improves overall system performance.

Risk-Free Coexistence Strategy

OpenLegacy eliminates the "Big Bang" migration risk by enabling Side-by-Side Coexistence. Legacy systems and new AWS-native services run in parallel with 100% functional parity. This incremental, phased approach ensures zero business disruption and provides a permanent safety net, allowing the organization to cut over to the cloud one service at a time.

Automated "Cloud-Native" Code Generation

Instead of using proprietary runtimes or "black-box" emulators, OpenLegacy automatically extracts business logic and transforms it into standard, contract-first Java or Node.js. This creates truly cloud-native code that can run on AWS Lambda or EKS and be maintained by modern DevOps teams, effectively solving the "skills gap" created by the retiring mainframe workforce.

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AWS migration and modernization competency

Redefining The Journey To The Cloud

 

Modernize legacy systems at your own pace, balancing cloud migration with on-prem flexibility - without disruption or risk.

Infographic

How to Remove the Major Obstacle of Legacy Modernization: Risk

Solution Brief

Risk Free Agile Mainframe Modernization to AWS Cloud

Article

Integrating mainframe workloads into your AWS migration and modernization journey with OpenLegacy

Solution Brief

Legal and General: Phased Mainframe Modernization with AWS and a Hybrid Cloud Strategy

Reference Architecture

OpenLegacy and AWS Reference Architecture

Video

OpenLegacy Hub Introduction working together with AWS Transform

 

White Paper

Modernizing withConfidence: A Phased Co-Existence Strategy for Legacy Modernization

Solution Brief

Accelerating AWS Transform for Mainframe Consumption with OpenLegacy

Use Case Brief

OpenLegacy Use Case Brief for Financial Services, Insurance, Retail and Manufacturing

Data Sheet

OpenLegacy Community - Developer Toolset. Zero-Friction Modernization Through Free Developer Tooling

Guide

Welcome to OpenLegacy Hub: Getting Started Guide

Video

Highlights: OpenLegacy and AWS Webcast

Partner Portal

A full set of resources are available to our partners to support utilizing OpenLegacy for augmentation and migration of workloads to the AWS Cloud.

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