Best Web-Based Application Modernization Software of 2026

Kissflow is an easy-to-use, low-code platform for custom application development tailored to business operations. Kissflow empowers process owners and IT developers to automate and build processes and applications for internal business operations.

Appian, a platform dedicated to digital transformation, empowers teams to create robust applications at ten times the usual speed. By merging the agility of low-code development with top-notch process management, Appian ensures that organizations can expedite their digital transformation efforts. The platform includes a low-code development framework that offers drag-and-drop functionality, visual and declarative development options, a seamless user experience across devices, easy integrations, and immediate deployment capabilities. Additionally, Appian’s comprehensive features enable teams to rapidly adapt and innovate in a constantly evolving digital landscape.

With Microsoft Power Apps, everyone can now quickly create and share low-code applications. Rapidly build low-code apps to improve your organization's agility and solve difficult problems. Your team can build and launch apps immediately using pre-built templates. They can also be used for drag-and-drop simplicity and quick deployment. Then, roll out continuous improvements as necessary. Give everyone the power to build the apps they need with advanced functionality previously only available to professional developers--including pre-built AI components. Professional developers have the tools to seamlessly extend app capabilities using Azure Functions and custom connectors for proprietary or on-premises system. Connect your apps with hundreds of data sources using a collection of more than 260 connectors. The Common Data Service allows you to bring your data together as one source of truth. This will allow you to modernize processes and customize and extend Office 365, Dynamics 365, and other products.

K2View believes that every enterprise should be able to leverage its data to become as disruptive and agile as possible. We enable this through our Data Product Platform, which creates and manages a trusted dataset for every business entity – on demand, in real time. The dataset is always in sync with its sources, adapts to changes on the fly, and is instantly accessible to any authorized data consumer. We fuel operational use cases, including customer 360, data masking, test data management, data migration, and legacy application modernization – to deliver business outcomes at half the time and cost of other alternatives.

OutSystems stands out as the leading low-code platform tailored to assist users in creating and deploying superior applications more efficiently. By merging the efficiency of low-code development with robust mobile and enterprise integration features, OutSystems empowers users to visually design and oversee their complete application portfolio, coordinate interconnected applications and components, integrate smoothly with current systems, and enhance DevOps workflows. This holistic approach significantly accelerates the app development lifecycle, ensuring that businesses can respond swiftly to changing market demands.

EPAM's migVisor stands out as an innovative cloud migration assessment tool that enables organizations to evaluate their database environments and create a detailed visual roadmap for accelerating their transition to cloud-based databases. As businesses pursue digital transformation initiatives that involve modernizing applications and adopting cloud-native solutions, they are increasingly seeking to transition from traditional commercial databases to more advanced database technologies. Navigating the complexities of database strategy within the cloud can be challenging, often necessitating specialized knowledge and skills for re-factoring and re-platforming expansive, monolithic databases. Choosing the appropriate migration strategy away from commercial databases can yield significant advantages, including lower database licensing and IT costs, the alleviation of vendor lock-in, and the adoption of a contemporary cloud architecture. Ultimately, migVisor not only simplifies this process but also empowers companies to make informed decisions that align with their long-term digital goals.

Avoid being hampered by onboarding challenges, knowledge silos, or context switching by utilizing Swimm to create and modify documents that are seamlessly integrated with your code, automatically updated, and embedded in your workflow. With a language-agnostic editor and features like Smart Tokens and Snippet Studio, Swimm provides a robust foundation for contemporary documentation practices. Craft engaging, media-rich documents that are closely tied to your codebase with ease. The Auto-sync algorithm ensures your documentation remains aligned with any refactoring or structural changes, sparing you from the hassle of updating file names, function names, or implementations. Swimm actively monitors your documentation as your code changes, alerting you to any discrepancies that arise. You can conveniently access documents alongside the relevant code, maintaining your focus within your IDE. When you click a link, a new tab opens with the documentation rendered flawlessly from Markdown, ensuring a smooth and uninterrupted workflow. This streamlined approach not only enhances collaboration but also maximizes productivity, allowing teams to work more efficiently together.

AWS App Mesh is a service mesh designed to enhance application-level networking, enabling seamless communication among your services across diverse computing environments. It provides excellent visibility and ensures high availability for your applications. Typically, modern applications comprise several services, each capable of being developed on various compute platforms, including Amazon EC2, Amazon ECS, Amazon EKS, and AWS Fargate. As the complexity increases with more services being added, identifying error sources and managing traffic rerouting after issues become challenging, along with safely implementing code modifications. In the past, developers had to embed monitoring and control mechanisms within their code, necessitating a redeployment of services with each update. This reliance on manual intervention can lead to longer downtimes and increased potential for human error, but App Mesh alleviates these concerns by streamlining the process.

SQL Managed Instance, a member of the Azure SQL family, is a sophisticated cloud database solution that offers extensive compatibility with the SQL Server engine, dating back to SQL Server 2008, while providing the advantages of a fully managed platform as a service. By utilizing tools such as Azure Migrate or Azure Data Studio, you can confidently transition your custom and vendor applications to Azure, alleviating concerns about software updates, upgrades, or end-of-support scenarios. Since SQL Managed Instance operates on the SQL Server engine, it consistently incorporates the latest features and functionalities, ensuring your database remains current. Remarkably, it can fulfill your mission-critical needs up to five times faster and at a cost savings of up to 93 percent compared to AWS RDS. In various benchmarks covering both transactional and analytics workloads, SQL Managed Instance has demonstrated superior performance. Embrace the opportunity to accelerate your application modernization by leveraging the advanced capabilities of managed SQL Server in the cloud, empowering your organization to thrive in a competitive landscape.

Amazon Q Developer is an advanced AI assistant built for professional developers, combining coding intelligence with deep AWS expertise. It’s designed to handle every stage of development—from writing and refactoring code to performing upgrades and automating documentation. Integrated with major IDEs and the AWS Management Console, it empowers developers to code faster and operate smarter using secure, context-aware assistance. Its agentic automation can autonomously implement features, test applications, and perform large-scale migrations like .NET to Linux or Java 8 to Java 17 in minutes. Developers can chat directly with Amazon Q inside Slack, Microsoft Teams, GitHub, and GitLab, where it provides architectural recommendations and incident resolution guidance. The tool also supports CLI autocompletions and AWS resource management to streamline workflows from the terminal to the cloud. Offering enterprise-grade access controls and IAM integration, it ensures that organizational data and permissions remain protected. Available on the AWS Free Tier, Amazon Q Developer enables up to 50 monthly AI interactions and 1,000 lines of code transformation at no cost, helping teams start building smarter right away.

Mendix, a Siemens company and global leader in enterprise low code, is fundamentally changing the way applications are delivered in a digital enterprise. The Mendix platform allows enterprises to 'Make with More' by increasing their development capabilities to overcome the software development bottleneck. 'Make it Smart' by creating apps with rich native experiences that can be intelligent, proactive and contextual. 'Make at Scale' is a way to modernize core systems and create large app portfolios. Mendix is designed to encourage intense collaboration between IT and business teams. It dramatically accelerates application development cycles while maintaining the highest quality, security, and governance. In short, it helps enterprises leap into their digital future. More than 4,000 top companies have adopted the Mendix platform, including Conoco Phillips and Business Development Bank of Canada. Post NL, Continental, Zurich Insurance and more.

TCS MasterCraft™ TransformPlus serves as a cognitive transformation platform that enhances transparency into essential business applications by offering an intelligent blueprint and a centralized knowledge repository that is both technology agnostic and driven by implicit knowledge. This automated conversion system facilitates modernization and rapid deployments, enabling enterprises to progress in their digital transformation efforts without causing disruptions to their operations. It includes cognitive code analysis that provides a comprehensive application knowledge repository alongside business rule externalization. This platform not only supports the design and execution of data transformation and migration for businesses, particularly during the modernization of legacy systems, but also aids in the creation of new digital applications through an automatic code generation platform rooted in model-based development. Additionally, it features an automated migration solution for database and language conversion that significantly speeds up the application transformation process while ensuring accuracy and efficiency. By leveraging such capabilities, organizations can better navigate the complexities of digital evolution.

Elevate your distributed applications, enhance your workflows for resilience, and safeguard against software malfunctions and outages with Orkes, the top orchestration solution for developers. Create expansive distributed systems that integrate microservices, serverless solutions, AI models, event-driven frameworks, and more, using any programming language or development framework. Your creativity, your code, your application—crafted, built, and satisfying users at an unprecedented speed. Orkes Conductor provides the quickest route to develop and upgrade all your applications. Visualize your business logic as effortlessly as if sketching on a whiteboard, implement the components using your preferred language and framework, deploy them at scale with minimal setup, and monitor your extensive distributed environment—all while benefiting from robust enterprise-level security and management features that are inherently included. This comprehensive approach ensures that your systems are not only scalable but also resilient to the challenges of modern software development.

Nasstar offers a comprehensive range of managed services and integrated solutions designed to enhance business operations, encompassing everything from cloud optimization and application modernization to networking and automated tools for self-service. By providing thorough consultation paired with effective implementation and ongoing management, we equip our clients with the necessary vision and technical expertise to drive significant transformation. Our goal is to strengthen your business's resilience, improve the efficiency of your systems, and ensure compliance throughout your operations. With a focus on delivering a cohesive suite of services, we empower modern enterprises through our innovative approach to technology management. As your dedicated partner, we alleviate the burdens of IT management, allowing you to concentrate on achieving your strategic goals and initiatives. Ultimately, our mission is to foster an environment where businesses can thrive without the distractions of technical challenges.

Act swiftly now and prepare for whatever lies ahead. Regardless of your work environment, Pega simplifies collaboration through a user-friendly and inclusive method of application development. Adapt promptly to evolving demands by integrating users on a single platform that utilizes low-code tools alongside developer-grade solutions. Encourage innovation and oversee low-code initiatives on a large scale within your organization through a single, all-encompassing dashboard. Enhance efficiency by providing business users, developers, and IT with the necessary resources exactly when and where they are needed. Speed up the creation of applications by swiftly and effortlessly defining essential app components. Manage and operationalize low-code solutions effectively across your organization with one unified dashboard. Equip IT teams to ensure that every application is developed within the organization's established guidelines. Offer application experiences that are relevant in the present while remaining poised for future scalability. Pega's user experience framework is specifically designed to cater to the needs of your developers, employees, and customers, ensuring a seamless interaction for all stakeholders involved. This approach not only fosters collaboration but also drives the overall success of your projects.

Finsemble empowers software developers to construct intelligent desktop applications that facilitate the synchronization, linking, and sharing of information across various types of apps. Our platform offers an immediate foundation for development, equipped with ready-to-use integrations that enable your team to utilize familiar frameworks such as Angular, React, and more. With our software development kit, you can provide users with a smart desktop experience more swiftly than your competitors. By addressing and resolving intricate development challenges, we enable applications to start exchanging information instantly while allowing for the rapid assembly of personalized workspaces. With Finsemble, you can discover an innovative approach to collaborating within a genuinely unified desktop environment. The interaction between any application, whether modern or legacy, internal or third-party, spans across multiple screens and windows. Seamlessly connected applications can address a wide range of business challenges, and we are here to assist you in redefining your work experience. Let us explore how we can facilitate this transformation for your team.

Our software solutions, along with our deep industry knowledge, empower clients to focus on what truly counts – their own customers. We offer a comprehensive, Cloud-based platform tailored for manufacturing companies, addressing essential needs such as finance, payroll, customer relationship management, inventory management, supplier oversight, and reporting via dashboards. Additionally, we specialize in Application Modernization to help businesses eliminate the limitations imposed by outdated technology, which can hinder efficiency and escalate costs when not handled properly. Our team provides advanced automation tools, paired with expert insights to effectively revamp Mainframe, OpenVMS, and VME systems, as well as work with third and fourth generation programming languages. By leveraging our services, organizations can enhance their operations and stay competitive in a rapidly evolving market.

IBM Cloud Pak® for Applications facilitates the modernization of current applications, integrates enhanced security features, and enables the creation of new applications that drive digital transformation. This platform provides cloud-native development tools that swiftly generate value, coupled with adaptable licensing options designed to meet your unique requirements. Whether deployed on public clouds, on-premises, or within a private cloud, you can operate your applications in the environment that best suits your business needs. We offer resources to align them with Red Hat® OpenShift® on IBM Cloud®, a cohesive Kubernetes platform founded on open-source principles, ensuring support regardless of their deployment location. Transitioning to the cloud does not necessitate starting from scratch; rather, it allows for the modernization of legacy applications, enhancing their flexibility and scalability. Additionally, you will receive an assessment of your applications, complete with prioritized recommendations for modernization, guiding you on the path to effective transformation. By leveraging these insights, you can create a more agile and responsive IT infrastructure, ultimately driving greater business success.

IBM® Application Discovery and Delivery Intelligence (ADDI) serves as a powerful analytical tool designed for the modernization of applications. By leveraging cognitive technologies, it efficiently analyzes mainframe applications, enabling users to swiftly uncover and comprehend the interdependencies associated with modifications. This rapid enhancement of mainframe applications can significantly contribute to revenue generation and facilitate quicker returns on investments. Moreover, by improving your understanding of application complexity, ADDI helps you foresee potential issues, thereby reducing application and development costs. The platform allows for the agile evolution of systems and applications, maximizing the benefits of hybrid cloud environments. With enhanced application insights, organizations can boost productivity while minimizing risks, effectively accelerating their digital transformation journey. Furthermore, the platform's rapid analysis capabilities enable users to identify relationships among various components of IBM z/OS® applications, providing clarity on the potential impact of changes. Users can quickly locate essential business rules, code snippets, and APIs, empowering them to optimize their business processes and foster innovation. With ADDI, organizations can confidently navigate their modernization efforts and embrace the future of technology.

AppFactor drastically cuts down both the expenses and manpower typically involved in traditional application modernization efforts. After modernization, our platform enables teams to deploy, manage, and sustain their existing applications in a more streamlined and cost-efficient manner. This not only boosts engineering pace but also enhances vital business applications, fosters innovation, and provides a competitive advantage in the market. Transition legacy applications from physical and virtual servers to a cloud-native format swiftly, initiating an iterative process of architectural modernization, deployment, and ongoing enhancements. Smartly carry over runtime and inter-process connections from various server hosts into cloud-native structures. Expedite the integration of legacy applications into continuous integration and continuous deployment (CI/CD) workflows. Eliminate outdated physical and virtual infrastructure along with the need to upkeep operating systems. Furthermore, ease the cloud migration journey by adopting a gradual modernization approach toward advanced cloud solutions like Kubernetes platforms or Platform as a Service (PaaS), ensuring a smooth transition to the future of application management. Embracing this method not only facilitates immediate gains but also prepares organizations for long-term technological advancements.

DataVantage provides a wide range of data management solutions that focus on the protection and governance of sensitive information in both mainframe and distributed settings. Among its key products are DataVantage for IMS, Db2, and VSAM, which incorporate sophisticated features for data masking, editing, and extraction, ensuring the safeguarding of Personally Identifiable Information (PII) during non-production activities. Furthermore, DataVantage DME (Data Masking Express) enables economical, real-time data masking for Db2, IMS, and VSAM environments, facilitating compliance without hindering existing operations. For distributed infrastructures, DataVantage Global offers comprehensive data masking, obfuscation, and de-identification processes, promoting both compliance and operational effectiveness across various platforms. Moreover, DataVantage Adviser streamlines the management of COBOL files following mainframe rehosting or application modernization, thereby improving data accessibility and editing capabilities. This holistic approach to data management not only enhances security measures but also supports organizations in their quest for regulatory compliance and operational integrity.

AWS Transform is an innovative AI service offered by Amazon Web Services that facilitates the rapid modernization of outdated workloads, particularly those associated with .NET, mainframe systems, and VMware setups. Leveraging AWS's extensive experience in migration and modernization, this service utilizes specialized AI agents to perform a variety of tasks, including assessment, code analysis, dependency mapping, refactoring, decomposition, validation, and planning, all of which can occur simultaneously to enhance the efficiency of large-scale transformations. Teams from different disciplines can work together and oversee modernization projects from start to finish using a collaborative workspace and a natural-language chat interface. According to AWS, AWS Transform can accelerate the porting of .NET applications by up to four times, significantly hasten VMware configuration conversion, and shorten mainframe migration timelines from years to mere months. Furthermore, this service aims to lower costs associated with legacy licensing, infrastructure, and ongoing maintenance, making it a valuable tool for organizations looking to streamline their operations. Overall, AWS Transform appears to be a comprehensive solution that not only simplifies the modernization process but also enhances collaboration among teams.

Rocket Assembler Code Refactoring is an advanced modernization solution designed to automatically convert outdated Assembler code into structured pseudocode or modern programming languages like COBOL, C, or Java, all while preserving the original external behavior. This approach helps facilitate quicker and safer modernization efforts, ultimately enhancing maintainability. Given that Assembler code often suffers from density, lacks thorough documentation, and is increasingly supported by a dwindling number of experts, maintenance can become cumbersome, expensive, and prone to errors. The solution effectively counters these issues by providing transformations that maintain semantics and are auditable, leading to fewer outages and ensuring secure modernization without compromising system stability. The core engine operates fully automated, utilizing mathematically assured logic equivalence to mitigate conversion risks, which significantly speeds up projects and guarantees that the outputs remain semantically consistent with the initial code. As a result, organizations can transition their legacy systems with confidence, ultimately leading to improved operational efficiency.

Rocket Enterprise Suite stands out as a thorough solution for modernizing mainframe applications, specifically designed to assist organizations in revitalizing their essential COBOL and PL/I systems through replatforming rather than complete rewrites, thus minimizing both risk and costs while maintaining established business logic and facilitating a quicker transition to hybrid cloud setups. This suite boasts an array of integrated tools for development, analysis, testing, and deployment, including Enterprise Analyzer for gaining application insights, Enterprise Developer as an advanced integrated development environment (IDE), Enterprise Test Server for robust testing capabilities, and Enterprise Server for versatile deployment options, all aimed at enhancing efficiency, expediting updates, supporting hybrid deployment models, and transforming development workflows. Furthermore, the Enterprise Suite significantly accelerates the development process by accommodating popular industry-standard IDEs such as Visual Studio, Eclipse, and Visual Studio Code, while it also improves the developer experience (DevEx) by fostering modern development practices both on the mainframe and beyond. Ultimately, this comprehensive suite empowers organizations to effectively navigate the complexities of application modernization, ensuring they stay competitive in an ever-evolving technological landscape.

Rocket COBOL offers a robust array of tools for the modernization and development of COBOL applications, allowing organizations to transition their essential COBOL systems into distributed, virtual, containerized, and multicloud settings while maintaining established business logic and minimizing technical debt. This suite facilitates replatforming and modernization with minimal alterations to the code, empowering developers to create, enhance, and deploy COBOL applications through widely used integrated development environments such as Visual Studio, Eclipse, and Visual Studio Code. Additionally, it seamlessly incorporates GenAI-powered development tools and DevOps practices to boost both productivity and onboarding efficiency. Furthermore, Rocket COBOL's capabilities streamline modernization efforts by providing features like automated testing and continuous integration/continuous deployment (CI/CD), along with comprehensive static code analysis enriched with GenAI insights to identify code dependencies and assess the impact of changes, ultimately leading to a more efficient development process. With its user-friendly approach, Rocket COBOL not only aids in modernization but also ensures that organizations can adapt quickly to evolving technological landscapes.