Best Application Modernization Software for .NET

Compare the Top Application Modernization Software that integrates with .NET as of September 2026

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This a list of Application Modernization software that integrates with .NET. Use the filters on the left to add additional filters for products that have integrations with .NET. View the products that work with .NET in the table below.

What is Application Modernization Software for .NET?

Application modernization software helps organizations update legacy applications to meet modern performance, scalability, and security requirements. It supports initiatives such as cloud migration, refactoring, re-platforming, and containerization. The software often includes assessment tools, automation, and dependency mapping to reduce risk during modernization efforts. Many platforms integrate with cloud providers, DevOps pipelines, and infrastructure tools to streamline deployment and management. By modernizing applications, businesses can improve agility, reduce technical debt, and extend the value of existing systems. Compare and read user reviews of the best Application Modernization software for .NET currently available using the table below. This list is updated regularly.

1

vFunction

vFunction

vFunction modernizes Java applications and accelerates migration to the cloud. Automatically and quickly extract efficient microservices from complex monolithic apps. A single pane of glass that manages, tracks full cloud migration and modernization projects across an enterprise application estate. Modernization dashboard coordinates the full migration and modernization process including marking apps for refactoring, retention, retirement, replatforming, or rewriting. Your cloud transformation projects are moving ahead – but application modernization projects are not. Help application teams get unstuck and move forward faster. The pressure to modernize is growing. Lift and shift won’t cut it. These legacy apps are hard to refactor – automation and analytics can help modernize your most complex app. Take on more complex projects confidently.

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2

AWS Transform

Amazon

AWS Transform is an agentic AI service from Amazon Web Services that automates and accelerates the modernization of legacy workloads, specifically .NET, mainframe, and VMware environments. Built on AWS’s migration and modernization experience, it deploys specialized AI agents to carry out tasks like assessment, code analysis, dependency mapping, refactoring, decomposition, validation, and planning, many of which run in parallel, to speed up large-scale transformations. Through a shared workspace and natural-language chat interface, cross-functional teams can collaborate, track progress, and manage modernization projects from end to end. AWS claims AWS Transform can make .NET apps port up to 4 times faster, greatly speed VMware configuration conversion, and compress mainframe migration timelines (years down to months), while also helping reduce legacy licensing, infrastructure cost, and ongoing maintenance expenses.

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3

Rocket COBOL

Rocket Software

Rocket COBOL is development and runtime environment that helps enterprises maintain, enhance, and modernize distributed COBOL applications. Rocket COBOL products standardize COBOL development alongside other languages, giving teams access to industry standard tools, flexible deployment options, and DevOps workflows. With Rocket COBOL products, engineering teams work with COBOL in industry-standard tools such as Visual Studio Code, Visual Studio, and Eclipse. It delivers advanced editing and debugging, continuous background compilation, and code analysis to speed development and onboarding. Its portable deployment platform enables low risk moves to new infrastructure, supports cloud, container, and ARM environments, and integrates smoothly with APIs, .NET, and JVM ecosystems. Rocket products also extend the value of large COBOL systems by making them easier to understand and evolve. GenAI powered insights help teams work confidently with COBOL and accelerate delivery.

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4

OpenFrame

TmaxSoft

OpenFrame from TmaxSoft is a comprehensive mainframe modernization and replatforming solution that enables organizations to migrate legacy mainframe applications and data to open systems such as Linux, Unix, Docker containers, or public cloud environments without modifying existing business logic, preserving core functionality while reducing total cost of ownership and avoiding risky rewrites. It delivers a future-oriented, standard three-tier architecture that improves performance, stability, flexibility, and scalability compared with traditional mainframes, with support for over 100K MIPS and increased processing capacity. OpenFrame uses advanced compiler technology and an integrated asset analysis environment (OF Manager) to automatically convert user interface logic, application logic, and data structures so applications run natively in open environments with minimal manual effort, enabling existing personnel and skill sets to be retained.

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5

Intellisys

EvolveWare

Intellisys is an AI-enhanced platform for application modernization and maintenance that uses intelligent automation to enable multiple pathways to modernization, helping organizations reduce dependency on legacy technology and the costs associated with it. It supports an unparalleled number of programming languages and incorporates custom AI/ML technologies that continue to be enhanced over time. Intellisys mitigates modernization risk through a phase-based approach: documentation and analysis, followed by agile business rules extraction and/or code optimization and migration. It executes diverse modernization objectives across the application portfolio, supporting technologies. It provides a 100% automated set of reverse-engineering artifacts, helping teams analyze implemented logic, understand the impact of potential changes, and keep documentation continuously updated.

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