Best Application Server Software for Linux of 2025

Red Hat® JBoss® Enterprise Application Platform (JBoss EAP) offers robust security, exceptional performance, and scalability suitable for various environments. Whether utilized on-premise, in virtual settings, or across private, public, or hybrid cloud infrastructures, JBoss EAP accelerates application delivery across the board. The latest iteration, JBoss EAP 7, is designed to streamline deployment while providing comprehensive Jakarta EE capabilities for applications regardless of their environment. Its innovative modular architecture ensures that services are activated only as needed, enhancing efficiency. JBoss EAP 7 is specifically engineered for high performance and adaptability in contemporary application landscapes. This architecture, combined with a component-driven service model, not only minimizes scale-out times but also enhances the flexibility of applications deployed in diverse settings. By leveraging JBoss EAP, developers can effectively respond to the evolving demands of their business operations. Additionally, it supports Jakarta EE as well as various web frameworks including Spring, Spring Web Flow, Spring WS, and Spring Security, allowing for a seamless development experience.

RasPiEsi, the world's smallest open source ERP application server powered by Epesi, runs on Raspberry Pi Zero running with only 1 core and 512MB of RAM. Part of Epesi ENS – the first FOSS Enterprise Neuronal System. Epesi BIM stack on LLMP: - Linux Lighttpd - MariaDB - tuned PHP 7.4 FPM + memcached ZRAM On November 4, 2023, neofetch added and updated 77 package for version 1.1 (Joziu). RasPiEsi was the smallest Epesi Node I could build, with RAM usage at only 133MB. This tiny server runs Epesi very well, especially on a quick SD card. It should run on any Raspberry Pi – from the $5 RPi zero with no WiFi, 1 CPU and 512 MB RAM (used to create the disk image) to the high-end RPi 4 – without modification. The RPi 3 worked fine - no modifications, just swapped units! MIT License (c) Copyright 2024 by Janusz and Karina Tilek

You can build, secure, and run the complete set of features. All you need to build and secure your projects, automate your day-today tasks, and protect yourself against vulnerabilities - all from one dashboard. Add domains and subdomains, and move them between subscriptions. Configure DNSSEC and DNSSEC. All domains can be secured with the SSL It! extension. Horde & RoundCube webmail for Plesk Linux / Windows Automatically set up Thunderbird and Outlook clients with mail autodiscovery plus SNI support. You can move databases between subscriptions, and see which database is linked with which website. MariaDB is now the database server for customer websites. The all-new File Manager is available to make your life easier. It now includes mass uploading and file searching capabilities.

Apache TomEE, affectionately known as “Tommy”, is a certified application server for Jakarta EE 9.1, built upon the foundation of Apache Tomcat by utilizing a standard Apache Tomcat zip file. The process begins with the base Apache Tomcat, to which we integrate our specific libraries and then package everything together. The end product is essentially Tomcat enhanced with additional EE features, resulting in TomEE. This server is stable and production-ready, with Apache TomEE 8.0 implementing Java EE 8/Jakarta EE 8 while maintaining support for the javax namespace, and it operates on Java 8 or later versions. Furthermore, it aligns closely with the Jakarta EE 9.1 web profile and embraces the new jakarta namespace, requiring Java 11 or more advanced versions. Apache TomEE is available in four distinct variations: web profile, MicroProfile, Plus, and Plume, each tailored for specific requirements. The web profile of Apache TomEE includes essential components such as servlets, JSP, JSF, JTA, JPA, CDI, bean validation, and EJB Lite. Meanwhile, Apache TomEE MicroProfile introduces functionalities that cater to MicroProfile needs, while TomEE Plus and Plume extend capabilities to include JMS, JAX-WS, and several other features. With its robust architecture and diverse profiles, Apache TomEE is designed to accommodate a wide array of enterprise applications.

Apache Geronimo is a collection of open-source initiatives aimed at delivering JavaEE/JakartaEE libraries along with Microprofile implementations. Our focus is on creating reusable Java EE components that are both widely utilized and actively maintained. The project supplies libraries that align with the specifications of Java EE and Jakarta EE, while also emphasizing the provision of OSGi bundle metadata. A key objective of the XBean project is to develop a server that operates in a plugin-based manner, similar to how Eclipse functions as a plugin-centric IDE. XBean will have the capability to identify, download, and install server plugins from a repository available on the Internet. Furthermore, it encompasses support for various IoC systems, the option to run without an IoC system, JMX functionality without the need for JMX code, lifecycle and class loader management, and robust integration with Spring. In addition to these features, Apache Geronimo also supports several Microprofile implementations. Moreover, the Apache Geronimo Arthur initiative aims to create a lightweight layer that operates on top of Oracle GraalVM, enhancing the project's versatility and performance. This makes Apache Geronimo a valuable resource for developers seeking comprehensive solutions in the Java ecosystem.

NGINX Open Source is the web server that supports over 400 million websites globally. Built upon this foundation, NGINX Plus serves as a comprehensive software load balancer, web server, and content caching solution. By opting for NGINX Plus instead of traditional hardware load balancers, organizations can unlock innovative possibilities without being limited by their infrastructure, achieving cost savings of over 80% while maintaining high performance and functionality. It can be deployed in a variety of environments, including public and private clouds, bare metal, virtual machines, and container setups. Additionally, the integrated NGINX Plus API simplifies the execution of routine tasks, enhancing operational efficiency. For today's NetOps and DevOps teams, there is a pressing need for a self-service, API-driven platform that seamlessly integrates with CI/CD workflows, facilitating faster app deployments regardless of whether the application utilizes a hybrid or microservices architecture, which ultimately streamlines the management of the application lifecycle. In a rapidly evolving technological landscape, NGINX Plus stands out as a vital tool for maximizing agility and optimizing resource utilization.

A versatile web application server that integrates multiple layers of the standard application stack into a single entity, NGINX Unit streamlines the architecture for web applications and APIs. This universal platform acts as a foundational element for any web structure, accommodating everything from large-scale enterprise solutions to personal websites. It excels not only in simplifying contemporary microservices setups but also in updating older, monolithic systems. Developed by the original team behind NGINX, NGINX Unit is built on a completely new open-source codebase. Its design leverages knowledge gained from more than ten years of operating the most widely used web server globally. In contrast to the traditional NGINX web server, which typically functions as a reverse proxy for web applications, NGINX Unit is capable of executing application code directly. This unique capability makes it an attractive choice for developers looking to enhance performance and efficiency.

Supported application servers for production or containerized deployments that are compatible with Jakarta EE & MicroProfile

Do not settle for the standard security, throughput, and cost of your existing web application framework. JAVA EE 7 certified, JEUS 8 is the web application server. JEUS is a platform that allows you to develop, execute and manage web applications. It can quickly and easily create cloud environments and perform large transactions. WebtoB is a next-generation web server that solves structural problems in existing web servers. WebtoB offers enhanced security, error handling, and massive-scale transaction processing. These products can be used together to improve performance and reduce network traffic when they are deployed on different servers.

The Simple Application Server is an advanced computing solution designed for standalone application needs. With its one-click deployment feature, it streamlines several services including domain name resolution, website publishing, security, operations and maintenance, and application management, enhancing the user experience for those setting up basic applications. This service is particularly beneficial for novice users navigating cloud computing products, as it simplifies the process significantly. Users can access a variety of pre-built application images, such as WordPress, LAMP, Docker, Plesk, and cPanel, enabling them to utilize ready-to-go applications without the hassle of uploading or installing software. Additionally, it offers a pristine operating system free from pre-installed applications, allowing users to set up programs tailored to their specific business needs. The OS images cater to those with a solid understanding of operating systems and the configuration of application environments. Furthermore, users have the flexibility to create custom images, which can be used to deploy multiple Simple Application Servers efficiently. This functionality empowers businesses to adapt their server environments to meet evolving demands seamlessly.

Apache Tomcat® is an open-source software that serves as an implementation of various Jakarta specifications, including Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations, and Jakarta Authentication, all integral to the Jakarta EE platform. This software is utilized by many large-scale web applications that are critical to the operations of various industries and organizations. Users and their experiences can be found on the PoweredBy wiki page, showcasing the extensive impact of this technology. The Apache Tomcat Project has proudly announced the launch of version 10.0.10, which adheres to the specifications outlined in the Jakarta EE 9 platform. With this release, developers gain enhanced features and improvements, further solidifying Tomcat's position as a leading choice for enterprise-level web applications.

CIQ empowers people to do amazing things by providing innovative and stable software infrastructure solutions for all computing needs. From the base operating system, through containers, orchestration, provisioning, computing, and cloud applications, CIQ works with every part of the technology stack to drive solutions for customers and communities with stable, scalable, secure production environments. CIQ is the founding support and services partner of Rocky Linux, and the creator of the next generation federated computing stack.

A robust "virtual data center" solution tailored for the administration, deployment, and management of sophisticated web services. It efficiently supports a variety of servers, intricate deployments, geo-distributed systems, disaster recovery/high availability setups, and beyond. Equipped with the latest hypervisor technology and rapid, scalable SSD block storage, it provides a reliable foundation for websites, web applications, and online services. The platform accommodates large, customizable virtual servers that can be modified at any moment, making it ideal for demanding workloads. Leveraging cutting-edge hypervisors and high-speed, expandable SSD block storage, it is poised to meet the needs of modern enterprises. This next-gen system facilitates the development, swift deployment, and seamless operation of mission-critical applications. With excellent vertical and horizontal autoscaling capabilities, it boasts strong support for languages and frameworks including Java, PHP, Ruby, Python, Node.js, Golang, as well as container orchestration tools like Docker and Kubernetes. Our offerings also encompass optional services designed to guarantee security, performance, availability, and hassle-free management. We pride ourselves on delivering tailored solutions that address your specific needs, whether it’s for backup solutions, VPN services, high uptime requirements, or data protection strategies. Let us partner with you to enhance your infrastructure and ensure that your services run smoothly and efficiently.

Caddy streamlines your infrastructure by managing TLS certificate renewals, OCSP stapling, serving static files, reverse proxying, Kubernetes ingress, and more. Its modular design allows for enhanced functionality within a single, static binary that can be compiled for any platform. Caddy operates exceptionally well in container environments due to its lack of dependencies, including libc. You can deploy Caddy almost anywhere. It automatically acquires and renews TLS certificates for your websites and even includes OCSP response stapling. The innovative certificate management capabilities of Caddy are among the most advanced and dependable available. Developed in Go, Caddy provides improved memory safety compared to servers built with C. A robust TLS stack supported by the Go standard library underpins a substantial portion of global Internet traffic. Caddy serves as both an adaptable, efficient static file server and a formidable, scalable reverse proxy, making it a versatile choice for a variety of applications. Additionally, its user-friendly configuration and seamless integration make it an appealing option for developers seeking simplicity and effectiveness.

Microservice practitioners on the ground soon discover that most operational issues encountered during the transition to a distributed architecture primarily stem from two key factors: networking and observability. The challenge of networking and troubleshooting a complex array of interconnected distributed services is significantly more daunting than doing so for a singular monolithic application. Envoy acts as a high-performance, self-contained server that boasts a minimal memory footprint and can seamlessly operate alongside any programming language or framework. It offers sophisticated load balancing capabilities, such as automatic retries, circuit breaking, global rate limiting, and request shadowing, in addition to zone local load balancing. Furthermore, Envoy supplies comprehensive APIs that facilitate dynamic management of its configurations, enabling users to adapt to changing needs. This flexibility and power make Envoy an invaluable asset for any microservices architecture.

TidalScale's innovative software-defined servers mark a significant advancement in the realm of computing technology. By effectively "gluing" together commodity servers, TidalScale's software enables them to operate as a unified system. This process is achieved by aggregating and virtualizing the CPU cores, memory, and I/O from several physical servers, which are then presented to the operating system as a single cohesive "software-defined server." With the introduction of TidalGuard™ technology, the system allows for the hot-swapping of individual servers, facilitating upgrades or repairs while ensuring that vital workloads remain uninterrupted. Remarkably, this process necessitates no modifications to either the application or the operating system. The integrated patented TidalGuard™ technology enhances the reliability of software-defined servers, as it can identify and prevent over 90% of hardware failures by enabling the hot-swap of a malfunctioning server with a backup. In the unlikely event of a server failure, the system is capable of quickly restarting using the spare, typically within just a few minutes, ensuring minimal disruption to operations. This cutting-edge approach not only optimizes performance but also significantly enhances system resilience in critical environments.

Our lightweight Apache alternative saves resources without compromising performance, security, compatibility, and convenience. LiteSpeed Web Server's event-driven architecture doubles the capacity of your Apache servers. It can handle thousands of concurrent clients and consume minimal memory and CPU usage. ModSecurity rules are already in place to protect your servers. You can also take advantage of many built-in antiDDoS features like bandwidth and connection throttling. You can save capital by reducing the number servers required to support your growing web hosting business or online application. Reduce complexity by eliminating the need to use an HTTPS reverse proxy or other 3rd party caching layer. LiteSpeed Web Server can load Apache configuration files directly and is compatible with all Apache features, including ModSecurity and Rewrite Engine.