• Hexaware is a leader in legacy modernization, turning aging applications into cloud-ready platforms.
  • It maps six paths: rehost, re-platform, rearchitect, rebuild, replace, and run.
  • RapidX® uses GenAI to decode legacy systems and surface hidden dependencies.
  • Hexaware’s AI-led delivery reduces transformation risk and avoids technical debt.

A leader in legacy modernization, Hexaware turns aging applications into scalable, cloud-ready platforms. AI-led delivery reduces transformation risk and builds the digital capabilities enterprises need next.

How IT Teams Modernize Core Legacy Infrastructure Without Technical Debt

IT teams modernize core legacy infrastructure without adding technical debt by matching each application to the right approach instead of forcing a full rewrite. Hexaware maps this across six paths—rehost, re-platform, rearchitect, rebuild, replace, and run. RapidX® uses GenAI to decode legacy systems, surface hidden dependencies, and reduce transformation risk.

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The True Cost of Legacy Systems

Rising costs, talent shortages, security gaps, and limited agility continue to hold enterprises back from faster digital transformation.

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Up to 70% of IT spend goes to maintaining legacy systems

Most IT budgets are consumed by keeping legacy applications running—driven by licensing costs, aging infrastructure, and complex fixes—leaving little room for innovation.

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Mainframe talent shortages increase operational risk

Aging workforces and retiring experts are shrinking the pool of professionals capable of maintaining complex legacy applications and critical mainframe environments.

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Critical system knowledge is locked with a few SMEs

Legacy systems often depend on undocumented processes and a few SMEs, creating significant operational risks when experienced experts leave the business.

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Legacy technology slows enterprise digital progress

Outdated legacy systems limit cloud, AI, and integration capabilities, making it harder for enterprises to accelerate large-scale digital transformation initiatives.

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Aging infrastructure heightens the risk of cyberattacks

Unsupported legacy components, patchwork fixes, and outdated infrastructure create serious security gaps that increase exposure to cyber and compliance risks.

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Legacy tech can’t keep up with evolving regulations

Legacy technologies are slow to adapt to evolving regulations, increasing the risk of compliance issues, operational disruption, and costly financial penalties.

Legacy Application Modernization Services—Powered by RapidX®, Amaze®, and Tensai®

Move legacy applications to modern infrastructure, including cloud-native and microservices environments, without recompiling code or changing existing functionality.

Restructure legacy code and modernize application architectures without rewriting business logic to improve scalability, maintainability, and long-term efficiency.

Replace legacy custom applications and adopt modern, cloud-native COTS or SaaS alternatives. Build flexible, composable architectures that evolve with your business.

Migrate legacy applications to scalable, modern runtime platforms with minimal code modifications. Gain improved performance, enhanced maintainability, and cloud readiness.

Rebuild legacy applications from the ground up to support evolving business models, modern user experiences, scalable workflows, and digital-first strategies.

Continue evolving modernized applications through sustained engineering, automation, feature enhancements, proactive monitoring, and long-term performance optimization.

Hexaware’s Flagship Platforms for Legacy Modernization

RapidX® for AI-Led Modernization

RapidX® uses GenAI to decode legacy systems, reduce modernization risks, and accelerate agile, scalable, and future-ready digital transformation initiatives.

Amaze® for Cloud Migration Automation

Amaze® accelerates legacy modernization with AI-powered assessments, automated code conversion, and streamlined deployment for faster cloud transformation.

Tensai® for Intelligent DevSecOps

Tensai® speeds up legacy modernization using a GenAI-powered low-code DevSecOps framework designed for faster, secure, and scalable CI/CD delivery.

Legacy System Modernization Services

Technologies we help you modernize: From mainframes to custom code, we help you modernize with confidence.

Mainframes and Middleware

We support mainframe and middleware technologies. This includes Natural, Adabas, COBOL, JCL, CICS, and DB2.

Legacy Languages and Frameworks

We work with widely used legacy languages. These include COBOL Assembler, C++, PL/SQL, Legacy Java, and .NET.

Other Legacy Systems

We modernize complex legacy systems. These include control card-based systems and monolithic applications.

What’s New in Legacy Modernization

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Other Digital & Software Focus Areas

Digital Strategy Consulting

Accelerate digital transformation with strategies that align business goals, customer experiences, and emerging technologies to drive business impact and long-term value.

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Digital Experience

Create connected digital experiences that strengthen customer engagement, improve usability, and deliver seamless interactions that increase long-term brand value across channels.

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Digital Product Engineering

Accelerate innovation with agile product engineering services designed to build scalable digital products that improve efficiency, user experiences, and business growth.

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Software Development

Build, modernize, and scale enterprise applications faster with AI-driven software development services designed to improve delivery speed, quality, and scalability.

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Smart Factory Solutions

Achieve more output with AI-powered manufacturing transformation and smart factory solutions. Bring intelligence into every layer of your factory ecosystem.

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Frequently Asked Questions

Legacy modernization services reduce technical debt by matching each application to the right modernization approach rather than forcing a single method. Hexaware maps this across six paths—rehost, re-platform, rearchitect, rebuild, replace, and run—so teams modernize core systems in the way that fits each workload. RapidX® uses GenAI to decode legacy systems and surface hidden dependencies, giving teams a clear view before any change.

Enterprises use AI to decode undocumented legacy systems and recover the business logic buried inside them. Hexaware’s RapidX® applies GenAI to reverse-engineer legacy code, uncover hidden dependencies and data lineage, and map critical business rules. This turns opaque mainframe and legacy applications into something teams can understand and modernize with confidence—accelerating delivery while reducing the risk of losing critical logic in transition.

Legacy modernization services reduce transition risk by building a clear picture of a system before changing it. Hexaware decodes legacy applications with RapidX® to surface dependencies and business rules upfront, then uses Amaze® to automate cloud assessment and code conversion for controlled, low-error migration. Choosing the right path per application—from rehost to rebuild—keeps functionality intact and avoids disruptive, all-at-once rewrites.

Yes. Enterprises can extract and reuse business logic from mainframe applications rather than rebuilding it from scratch. Hexaware’s RapidX® uses GenAI to reverse-engineer mainframe and legacy environments—decoding technologies like COBOL, JCL, CICS, and DB2—to uncover hidden dependencies, data lineage, and embedded business rules. That recovered logic can then be carried into modernized, cloud-ready architectures, preserving critical functionality through the transition.

Legacy modernization services cut costs by freeing IT teams from the heavy spend of maintaining aging systems—often up to 70% of IT budgets. Hexaware modernizes applications into scalable, cloud-ready platforms using Amaze®, whose automation reduces replatforming effort and speeds cloud migration from months to weeks. This lowers the total cost of ownership and gives teams the agility to invest in innovation instead of upkeep.

Enterprises should evaluate providers on modernization breadth, AI depth, and the ability to reduce transition risk—not just lift-and-shift migration. Hexaware offers the full range of approaches, from rehost to full rebuild, backed by platforms including RapidX® for GenAI-led decoding, Amaze® for automated cloud migration, and Tensai® for secure DevSecOps delivery. That combination modernizes core systems while keeping risk and cost under control.

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