List of the Top 25 Application Modernization Software for Startups in 2026

Kissflow is a user-friendly, low-code platform designed specifically for creating custom applications that cater to business needs. It enables both process owners and IT developers to automate workflows effectively, allowing them to construct processes and applications that enhance internal business operations. Additionally, Kissflow streamlines collaboration between teams, making it easier to adapt to changing operational requirements.

Appian serves as a digital transformation platform that enables teams to develop powerful applications at a speed that is significantly faster, achieving results up to ten times quicker than traditional methods. By integrating the swift advantages of low-code development with exceptional process management, Appian assists organizations in expediting their digital transformation initiatives. The platform provides a low-code environment equipped with intuitive drag-and-drop features, visual development tools, a consistent user experience across multiple devices, straightforward integrations, instant deployment options, and various productivity-enhancing functionalities. This holistic strategy empowers businesses to respond rapidly to evolving market conditions and efficiently optimize their operational workflows. As a result, organizations can stay competitive and thrive in a fast-paced digital landscape.

Microsoft Power Apps empowers individuals to swiftly craft and share low-code applications, enhancing organizational flexibility while addressing complex challenges. Teams can effortlessly develop and deploy applications using ready-to-use templates, benefiting from an intuitive drag-and-drop interface for rapid implementation. Continuous enhancements can be rolled out as needed, ensuring the apps evolve with the organization’s requirements. This platform enables everyone to create the applications they need, offering advanced features that were once exclusive to professional developers, such as integrated AI components. Additionally, professional developers can utilize Azure Functions and custom connectors to expand app functionalities and integrate with proprietary or on-premises systems. With a library of over 260 connectors, users can link their applications to a multitude of data sources seamlessly. The Common Data Service consolidates data into a single source of truth, facilitating the modernization of processes while allowing for tailored adjustments and extensions to Office 365, Dynamics 365, and other products. Ultimately, this capability fosters a culture of innovation by enabling users at all levels to engage in app development and customization.

Amazon Q Developer is AWS’s most capable generative AI assistant for software development, engineered to enhance productivity across every phase of the build cycle. Available as a plugin for JetBrains, VS Code, Visual Studio, Eclipse, and the command line, it brings real-time code generation, debugging, and documentation directly into the developer’s workspace. Unlike simple autocomplete tools, its agentic capabilities allow it to autonomously complete complex tasks—implementing new features, performing code reviews, running tests, and upgrading legacy applications with minimal human input. It’s deeply integrated with the AWS ecosystem, offering expertise in cloud optimization, cost management, and operational diagnostics. Teams can engage Amazon Q in Slack, Microsoft Teams, GitHub, and GitLab for seamless collaboration, architecture guidance, and incident troubleshooting. The platform also supports data-driven development, helping users build analytics pipelines and machine learning workflows using natural language prompts. Its privacy-first design ensures that proprietary content is never used to train models, while AWS IAM-based access controls maintain enterprise security standards. Internal studies report up to 80% faster development speeds and a 37% acceptance rate for multi-line code suggestions—among the best in the industry. Whether upgrading Java apps, managing DevOps pipelines, or designing AI projects, Amazon Q Developer accelerates innovation while reducing friction. With flexible deployment and perpetual free access for limited use, it’s redefining the developer experience for the AI era.

OutSystems is recognized as the premier low-code platform designed to help users efficiently build and deploy high-quality applications. By combining the advantages of low-code development with powerful mobile and enterprise integration capabilities, OutSystems enables users to visually craft and manage their entire application portfolio, seamlessly connect various applications and components, integrate effortlessly with existing systems, and optimize DevOps processes. This comprehensive strategy greatly speeds up the application development lifecycle, allowing organizations to adapt quickly to evolving market conditions and achieve their objectives more effectively. Ultimately, this positions businesses to innovate continuously and stay competitive in their industries.

EPAM's migVisor is a cutting-edge tool designed for assessing cloud migration that assists organizations in analyzing their database landscapes and crafting a comprehensive visual plan to expedite their shift to cloud databases. As companies embark on digital transformation journeys that require the modernization of applications and the integration of cloud-native technologies, there is a growing demand to move away from traditional commercial databases toward more sophisticated database solutions. The intricacies involved in formulating a database strategy for the cloud can be daunting, often requiring in-depth expertise in refactoring and re-platforming large, monolithic database systems. Selecting the right migration approach from commercial databases can offer substantial benefits, such as reduced database licensing and IT expenditures, the removal of vendor lock-in, and the transition to a modern cloud architecture. By leveraging migVisor, companies can navigate these challenges more easily, enabling them to make strategic decisions that support their long-term digital aspirations and ultimately enhance their operational efficiency. The tool not only streamlines the migration process but also fosters a proactive mindset toward embracing innovative database technologies.

Eliminate obstacles related to onboarding, knowledge barriers, or frequent context switching by leveraging Swimm, which enables you to create and update documents that are intricately connected to your code, continuously refreshed, and integrated into your workflow. Swimm features a versatile editor and innovative tools like Smart Tokens and Snippet Studio, laying the groundwork for effective modern documentation strategies. Effortlessly produce engaging documents enriched with multimedia elements that are directly linked to your codebase. Thanks to the Auto-sync algorithm, your documentation stays in sync with any code refactoring or structural alterations, thus relieving you from the burden of manually updating file names, function names, or other implementations. Swimm keeps a close watch on your documentation while your code evolves, notifying you of any inconsistencies that may develop. You can easily view documents alongside the appropriate code, which helps maintain your concentration within your integrated development environment (IDE). By clicking a link, a new tab will open, displaying the documentation beautifully rendered from Markdown, which fosters a smooth and continuous workflow. This efficient method not only bolsters teamwork but also significantly increases productivity, empowering teams to collaborate more effectively. With Swimm, the focus on documentation becomes a seamless part of your development journey, transforming how teams share knowledge and manage information.

AWS App Mesh is a sophisticated service mesh that improves application-level networking, facilitating smooth communication between your services across various computing environments. This platform not only enhances visibility into your applications but also guarantees their high availability. In the modern software ecosystem, applications frequently comprise numerous services, which can be deployed on different compute platforms such as Amazon EC2, Amazon ECS, Amazon EKS, and AWS Fargate. As the number of services within an application grows, pinpointing the origins of errors becomes increasingly difficult, alongside the need to reroute traffic following errors and safely manage code updates. Historically, developers were required to embed monitoring and control features directly within their code, which meant redeploying services each time modifications were necessary. However, App Mesh alleviates these challenges significantly, leading to a more efficient method of overseeing service interactions and implementing updates. Consequently, developers can focus on innovation rather than being bogged down by the complexities of service management.

SQL Managed Instance, a component of the Azure SQL suite, delivers a sophisticated cloud database experience that boasts extensive compatibility with the SQL Server engine, tracing back to SQL Server 2008, all while providing the benefits of a fully managed platform as a service. Utilizing tools such as Azure Migrate or Azure Data Studio enables you to seamlessly migrate your custom applications and those from third-party vendors to Azure, eliminating concerns about updating, upgrading, or facing end-of-support challenges. Powered by the formidable SQL Server engine, SQL Managed Instance guarantees continuous access to the latest SQL features and innovations. This service is designed to meet essential performance objectives significantly faster—achieving speed improvements of up to five times—while allowing for cost savings of up to 93 percent compared to AWS RDS. SQL Managed Instance has excelled in three different benchmarks that assess both transactional and analytical workloads, showcasing its outstanding performance capabilities. By taking advantage of cutting-edge managed SQL Server functionalities in the cloud, you can effectively expedite your application modernization initiatives and enhance overall operational efficiency. Moreover, adopting this service can lead to greater scalability and flexibility in managing your database needs, ensuring that your organization remains agile in a rapidly evolving digital landscape.

Your users demand speed, but legacy systems can easily slow down your momentum. Updating mission-critical applications shouldn't force your business into a risky, expensive rewrite. Rocket® Uniface™ is a premier application development platform that helps you build, upgrade, and modernize your core systems securely and efficiently. We give your team the power to innovate without disrupting the foundation you rely on every day. By combining intuitive features with robust performance, we help you overcome technical debt and deliver exceptional user experiences. - Accelerate project delivery using modern low-code tools that empower both expert developers and business users. - Modernize mission-critical applications effortlessly with powerful, built-in automation capabilities. - Enhance security and integrate seamlessly to future-proof your low code application development lifecycle. Build a resilient, future-ready enterprise. Let us partner with you to

IBM Bob acts as an AI-powered collaborator throughout the entire software development lifecycle, transforming how developers engage with their codebases. Unlike standard autocomplete tools, it allows teams to progress beyond basic coding help, facilitating the modernization, security, and scalability of their applications. Bob significantly improves existing workflows in the software development lifecycle, empowering users to confidently write, test, upgrade, refactor, debug, document, and secure their software projects. With Bob's capabilities, developers can easily translate natural language prompts into executable code, make use of both single-line and multi-line completions, automatically clean up and fix existing code, inquire about specific codebases, streamline repetitive tasks, and create new files or entire projects. It boasts specialized modes designed for various tasks, including Code mode for coding adjustments, Ask mode for seeking clarifications, Plan mode for pre-implementation design, Advanced mode for tackling complex issues, and Orchestrator mode for overseeing multi-step undertakings. By incorporating these diverse functionalities, Bob transcends being merely a tool; it serves as a holistic assistant aimed at boosting productivity and efficiency in the realm of software development. Ultimately, this innovative approach redefines the developer experience, making the process more intuitive and effective.

Mendix, a subsidiary of Siemens and a frontrunner in the realm of enterprise low-code solutions, is revolutionizing the delivery of applications within digital enterprises. The Mendix platform empowers organizations to 'Make with More' by enhancing their development capabilities to address the software development bottleneck effectively. It also promotes 'Make it Smart', enabling the creation of applications that offer rich native experiences while being intelligent, proactive, and contextual. Furthermore, 'Make at Scale' facilitates the modernization of core systems and the development of extensive app portfolios. Designed to foster robust collaboration between IT and business teams, Mendix significantly speeds up the application development process without compromising on quality, security, or governance. This approach enables enterprises to make significant strides into their digital future. Thousands of prominent companies, including Conoco Phillips and the Business Development Bank of Canada, have embraced the Mendix platform, alongside industry leaders such as Post NL, Continental, and Zurich Insurance, further validating its impact in the enterprise application landscape.

TCS MasterCraft™ TransformPlus is a cognitive transformation platform that enhances visibility into key business applications by providing an intelligent framework and a centralized knowledge base that is both agnostic to technology and informed by implicit knowledge. This automated conversion solution streamlines modernization and accelerates deployment, allowing businesses to advance their digital transformation initiatives without interrupting their existing operations. It incorporates cognitive code analysis, which delivers an extensive repository of application knowledge along with the ability to externalize business rules. Not only does this platform facilitate the design and execution of data transformation and migration, especially when modernizing legacy systems, but it also supports the development of new digital applications through an automatic code generation system based on model-driven development principles. Furthermore, it includes an automated migration tool for database and language conversion, which significantly enhances the speed of the application transformation process while maintaining high levels of accuracy and efficiency. By harnessing these advanced features, organizations can adeptly manage the challenges presented by digital change, positioning themselves for future success. Ultimately, the integration of such innovative solutions empowers businesses to remain competitive in an ever-evolving digital landscape.

Your applications hold decades of business value, but updating them shouldn't trap your team in the past. Rocket® Visual COBOL® delivers a state-of-the-art development and runtime environment, empowering you to maintain, enhance, and modernize your distributed COBOL applications effortlessly. We help your developers connect reliable legacy systems with tomorrow's innovations. - Empower your engineering teams to work natively within the modern IDEs they already love, including Visual Studio, Visual Studio Code, and Eclipse. - Accelerate project delivery and simplify new talent onboarding with advanced editing, intelligent code analysis, and robust debugging tools. - Unify your enterprise architecture by integrating your core systems smoothly with modern APIs, .NET, and JVM ecosystems. Future-proof your mission-critical applications without the risk of a massive rewrite. Let us partner with you to unlock the full potential of your core systems today.

Cut down the time needed for static code analysis from thousands of seconds to mere minutes. Security flaws can be addressed across numerous repositories swiftly, transforming the remediation process into a matter of moments. Moderne streamlines code-remediation tasks, empowering developers to generate increased business value on a daily basis. It enables the automation of extensive, safe changes to codebases that enhance quality, security, cost-efficiency, and overall code integrity. Effectively manage the dependencies within your software supply chain to ensure that your software remains consistently up-to-date. Automatically eliminate code smells without the disruptive scanning associated with traditional SAST or SCA tools, guaranteeing that you always work with high-quality code. This marks the final shift in securing your applications. As modern applications inevitably gather technical debt, they comprise multiple codebases and software ecosystems that incorporate bespoke, third-party, and open-source code. The growing complexity of software development has made the task of maintaining your code increasingly challenging and intricate. Thus, adopting an automated solution becomes essential for keeping pace with these evolving demands.

Transform your distributed applications, optimize your workflows for greater resilience, and protect against software failures and downtime with Orkes, the leading orchestration platform for developers. Build extensive distributed systems that seamlessly connect microservices, serverless architectures, AI models, event-driven systems, and much more, using any programming language or development framework you prefer. The power lies in your creativity, your coding skills, and your applications—developed, executed, and delivering value to users at an unmatched pace. With Orkes Conductor, you gain the fastest pathway to both create and evolve your applications. Visualize your business logic as simply as if you were drawing on a whiteboard, implement the necessary components in your chosen language and framework, deploy them at scale with minimal setup, and oversee your vast distributed landscape—all while enjoying robust enterprise-grade security and management features that come built-in. This all-encompassing strategy guarantees that your systems will not only be scalable but also resilient against the complexities of contemporary software development, allowing you to focus on innovation rather than maintenance. Embrace the future of application orchestration and empower your development process today.

Your business demands high performance, but managing complex data architectures shouldn't hold you back. The Rocket® MultiValue™ application platform merges a robust embedded database with a versatile development environment. We help you deliver the flexibility modern applications require while keeping your daily operations streamlined and stress-free. By unifying your database and development tools, we empower your team to focus on solving critical business challenges rather than maintaining demanding infrastructure. - Build and deploy powerful multivalue application platform solutions rapidly. - Reduce your reliance on specialized IT management with an intuitive, integrated architecture. - Enjoy a remarkably low overall cost of ownership that frees up your resources for future innovation. Let us help you transform traditional database management into a clear competitive advantage. Partner with us to modernize your data systems today.

BMC AMI DevX revolutionizes the environment of mainframe development by equipping teams to produce high-quality code with enhanced efficiency, more seamless workflows, and a modernized development experience. It seamlessly integrates various phases of the software development lifecycle, including agile methodologies, testing, debugging, promotion, and delivery, into a unified toolchain designed to support developers of all skill levels. By enabling teams to work within their favored platforms such as Eclipse and VS Code, it reduces disruptions and simplifies the onboarding process for new team members. The platform optimizes essential processes like editing, building, source code management, approvals, and deployment through its Code Pipeline feature, which encourages concurrent development, speeds up release cycles, and guarantees secure delivery. Additionally, Code Insights grants developers immediate access to complex mainframe applications, facilitating the understanding of logic, dependencies, and monolithic architectures, while generative AI insights aid in the swift interpretation of intricate COBOL, JCL, PL/I, and Assembler code. This comprehensive methodology not only simplifies the development journey but also empowers teams to innovate at a faster pace and more effectively in an ever-changing technological environment, ultimately leading to improved collaboration and increased productivity.

Mechanical Orchard's Imogen platform effectively revolutionizes mainframe applications by utilizing authentic data flows instead of simply translating existing code, thus upgrading legacy systems into modern code. The journey of modernizing outdated technology often faces obstacles such as quick fixes, difficulties with cloud simulations, accumulated technical liabilities, uncertainties in integration, and the vital stages of transition; nevertheless, Imogen mitigates these risks by applying a behavior-first, test-driven strategy. By shifting the emphasis from code alone, Imogen seeks to comprehend the genuine performance of individual workloads through real data flows, facilitating the construction of an accurate behavioral duplicate of a complex system through a methodical, iterative, and transparent process. It starts by producing a comprehensive behavioral specification derived from the current operational system, followed by a rapid feedback loop that allows for quick code generation and validation against those specifications, ultimately leading to software that is not only of audit-quality but also idiomatic and suitably equipped for future enhancements. This groundbreaking methodology not only improves reliability but also efficiently facilitates the adoption of modern technologies, paving the way for organizations to keep pace with evolving demands. Moreover, the focus on behavior-driven development fosters a deeper understanding of system dynamics, enhancing overall system performance in the long run.

Nasstar provides an extensive array of managed services and integrated solutions aimed at optimizing business operations, covering aspects such as cloud enhancement, application revitalization, networking, and automated self-service tools. Through in-depth consultations complemented by successful implementation and continuous management, we empower our clients with the insights and technical skills necessary for transformative change. Our primary objective is to bolster your business's resilience, enhance system efficiency, and maintain compliance across all operations. By delivering a unified suite of services, we enable contemporary enterprises to thrive through our forward-thinking approach to technology management. As your committed partner, we take on the complexities of IT management, freeing you to focus on your strategic objectives and initiatives. In addition, we strive to create an atmosphere where businesses can flourish, unencumbered by technical issues, ultimately paving the way for sustained growth and success.

Take immediate action to prepare for upcoming challenges. No matter your work setting, Pega streamlines teamwork through an accessible and inclusive approach to application development. Quickly adjust to shifting requirements by bringing users together on a unified platform that combines low-code tools with developer-grade solutions. Promote creativity and manage low-code projects on a grand scale within your organization using a single, comprehensive dashboard. Improve productivity by equipping business users, developers, and IT with essential resources right when and where they're needed. Accelerate the application development process by easily and quickly defining key components of your apps. Effectively manage and implement low-code solutions throughout your organization using one integrated dashboard. Empower IT teams to ensure that all applications adhere to the organization's established standards. Deliver relevant application experiences today while maintaining readiness for future growth. Pega's user experience framework is tailored to fulfill the needs of developers, employees, and customers alike, guaranteeing smooth interactions for all parties involved. This strategy not only enhances collaboration but also propels the overall success of your initiatives, ultimately fostering an innovative environment within your organization. By leveraging these tools, you can ensure that your projects are not only successful but also sustainable in the long run.

Finsemble equips software developers with the tools to create advanced desktop applications that enable the seamless synchronization, linkage, and sharing of data across diverse applications. Our platform provides an immediate starting point for development, complete with pre-built integrations that allow your team to work with well-known frameworks like Angular and React. With our software development kit, you can offer users a sophisticated desktop experience more rapidly than your rivals. By tackling complex development hurdles, we empower applications to begin exchanging information right away while enabling the quick creation of customized workspaces. Finsemble presents a fresh perspective on collaboration within a truly integrated desktop setting. The interactions among all types of applications, whether contemporary or traditional, internal or external, span multiple screens and windows. By ensuring that applications work together seamlessly, we can tackle a variety of business challenges, and our mission is to help you transform your work environment. Join us as we delve into the ways we can support this evolution for your team, ultimately enhancing productivity and collaboration.

Broadcom Endevor is an enterprise mainframe DevOps and software change management solution designed to help organizations manage, build, secure, and deploy mission-critical applications. The platform serves as a centralized system for software asset management, compliance tracking, and automated development workflows across complex mainframe environments. Endevor supports modern DevOps practices by integrating Git-based development, CI/CD pipelines, RESTful APIs, and Agile workflows without requiring organizations to move or rewrite existing source code. Businesses can modernize mainframe application delivery while minimizing lift-and-shift risks through tools such as Bridge for Git and Team Build. The platform also supports hybrid and Git-native development models, allowing teams to choose workflows that best align with operational and modernization goals. Developers can work in familiar environments such as ISPF, Eclipse, Zowe CLI, and Visual Studio Code with Code4z integration for improved flexibility and productivity. Explorer for Endevor provides modern access to Endevor inventory locations and elements directly within VS Code and compatible cloud development environments. Endevor also strengthens software supply chain security by generating digitally signed SBOMs that support compliance initiatives and reduce vulnerability risks. The platform includes comprehensive audit capabilities, webhook-driven integrations, and traceability tools that improve governance and operational visibility throughout the software development lifecycle. Broadcom is also expanding Endevor with AI-enabled capabilities such as Code4z Assistant and analytics dashboards that help organizations improve development efficiency and DevOps performance monitoring. Endevor Web Services exposes core operations through secure REST APIs, enabling seamless integration with enterprise automation and third-party development tools.

IBM Cloud Pak® for Applications streamlines the modernization of existing applications, incorporates advanced security features, and allows for the development of new applications that facilitate digital transformation. This platform is equipped with cloud-native development tools that rapidly deliver value, along with flexible licensing options tailored to your specific needs. Whether you choose to deploy on public clouds, on-premises, or in a private cloud, your applications can function in the setting that optimally serves your business requirements. Resources are available to help integrate your applications with Red Hat® OpenShift® on IBM Cloud®, a unified Kubernetes platform built on open-source foundations, ensuring comprehensive support regardless of where they are deployed. Moving to the cloud doesn't require a complete overhaul; instead, it promotes the modernization of legacy applications, thereby improving their adaptability and scalability. Furthermore, you will receive a thorough evaluation of your applications, accompanied by prioritized recommendations for modernization, which will steer you towards successful transformation. By utilizing these assessments, you can cultivate a more nimble and responsive IT infrastructure, ultimately leading to enhanced business performance and innovation. Embracing this approach not only enhances efficiency but also positions your organization to better respond to evolving market demands.

vFunction breathes new life into Java applications, facilitating a smoother migration to the cloud. It allows for the rapid and automatic extraction of effective microservices from complex monolithic architectures. The platform provides a cohesive interface that manages and tracks extensive cloud migration and modernization projects across an entire suite of applications. Its modernization dashboard governs the entire migration process, aiding in critical decisions regarding whether to refactor, retain, retire, replatform, or rewrite specific applications. Despite the ongoing cloud transformation efforts, there are still hurdles to overcome in the realm of application modernization. It is crucial to support teams in navigating these challenges and speeding up their advancement. As the urgency for modernization grows, relying merely on lift and shift methods proves inadequate. These older applications pose significant challenges for refactoring; however, by harnessing automation and analytics, even the most complex applications can be modernized with greater ease. Seize the chance to confidently tackle more sophisticated projects, assured that you possess the necessary tools to succeed and drive innovation within your organization. Ultimately, embracing this approach not only enhances efficiency but also positions your applications for future growth and adaptability.