Best Free Application Server Software of 2025

Compare the Top Free Application Server Software as of November 2025

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What is Free Application Server Software?

Application server software provides a platform for deploying, managing, and running applications, typically for web or enterprise environments. These servers handle the backend logic of applications, facilitating the connection between client devices and databases or other services. Application servers often provide middleware services such as security, transaction management, and messaging, enabling the smooth execution of applications. They are designed to support multiple users simultaneously and ensure high availability, scalability, and performance of applications. This software is commonly used in environments where complex, data-intensive applications are developed, such as in e-commerce platforms, enterprise resource planning (ERP), and customer relationship management (CRM) systems. Compare and read user reviews of the best Free Application Server software currently available using the table below. This list is updated regularly.

1

Linx

Twenty57

A powerful iPaaS platform for integration and business process automation. Linx is a powerful platform for building custom integrations at scale. The platform provides enterprise-grade capability and unparalleled flexibility to cater to a wide range of integration use cases for today’s growing businesses, including application integration, data synchronization, data migration, automations, and rapid API development and management. Linx is a low-code, desktop-based iPaaS that enables organizations to connect their cloud and on-premise applications, data sources.

1 Rating

Starting Price: $599 per month

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2

Switchover

Takso

We help companies in every industry to accelerate their software development processes. Our clearly arranged feature flag solution allows you to switch your features on and off at any time. Use it for User Targeting, A/B Testing, Canary Releases, Experimenting and everything else you can think of.

Starting Price: 0,-EUR

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3

Azure App Service

Microsoft

Quickly build, deploy, and scale web apps and APIs on your terms. Work with .NET, .NET Core, Node.js, Java, Python or PHP, in containers or running on Windows or Linux. Meet rigorous, enterprise-grade performance, security and compliance requirements used a trusted, fully managed platform that handles over 40 billion requests per day. Fully managed platform with built-in infrastructure maintenance, security patching, and scaling. Built-in CI/CD integration and zero-downtime deployments. Rigorous security and compliance, including SOC and PCI, for seamless deployments across public cloud, Azure Government, and on-premises environments. Bring your code or container using the framework language of your choice. Increase developer productivity with tight integration of Visual Studio Code and Visual Studio. Streamline CI/CD with Git, GitHub, GitHub Actions, Atlassian Bitbucket, Azure DevOps, Docker Hub, and Azure Container Registry.

Starting Price: $0.013 per hour

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4

Payara Enterprise

Payara Services Ltd

Jakarta EE & MicroProfile compatible, supported application servers for production and containerized deployments. Monthly releases, bug fixes, and patches. Rolled into Payara Enterprise products making Payara Server the best option for production Jakarta EE (Java EE) applications and Payara Micro the best option for containerized Jakarta EE applications. Payara Migration & Support engineers assist customers with Payara Server or Payara Micro during development projects before going to production, or provide assistance with the application server migration process. Raise tickets for bugs, incidents or questions related to Payara Server or Payara Micro, including any general questions you may have about configuration, deployment, security, monitoring and troubleshooting. Exclusive access to monthly releases of Payara Server and Payara Micro including crucial fixes and patches. New features are added once they are stable and ready for production use.

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