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Application Servers

by Preethica Furtado
An application server is a server that hosts applications. Our G2 guide can help you understand application servers and the benefits of using application servers.

What is an application server?

Application server software allows users to install and host applications such as web browsers, image editors, development and testing applications, etc. Application servers grew in popularity when the demand for numerous applications across industries grew. The complexity and additional functionality required by users became tedious to maintain, pushing the demand for application servers.

Application servers can have different users based on their respective requirements. A user might need an application for scalability or to improve managing all their web applications. An application server acts as a middleware platform or the second layer since it exists between the first layer, the client end, which can be a browser or a web server, and the third layer, the database server itself.

Types of application servers

There are three types of application servers:

  • Active application server: This application server supports business logic in the form of rules or objects.
  • Web information server: This type of application server focuses on processing web applications.
  • Component server: This type of application server helps connect different software components.

Benefits of using application servers

A few benefits of application servers include:

  • Instant access to apps: Every application being used is pulled from an application server and delivered by a web server. Web clients make HTTP requests to access a particular app pulled from the application server.
  • Traffic optimization: Application servers are designed in such a way that they can handle high incoming traffic for the apps. Application servers are built to handle multiple requests from web clients. In addition, the performance of heavy applications increases by using an application server.
  • License management: Installing an application every time on a system is difficult. This is where the application server comes in. Computers can run applications without the need to be run locally. This helps in managing licenses for various applications since only the allowed number of users can use the application at a given time.
  • Data integrity: Application servers follow a centralized approach. Any security updates, patches, etc., can be done via the application server. Different users do not need to access the same application and make changes that could cause potential errors.

Application server best practices

In order to make an application server work, there are a few best practices that should be followed:

  • Identifying and prioritization: As a best practice when choosing application servers, it's essential to identify and prioritize based on the wants and needs of the organization/user. Some of the important factors to consider include scalability, reliability, development, performance, and cost-effectiveness, among others.
  • Identification of a use case: If the organization is large to very large, then an application server might be necessary. However, if a smaller organization is looking to purchase an application server, the cost might be their main factor.
Preethica Furtado
PF

Preethica Furtado

Preethica is a Market Research Manager at G2 focused on the cybersecurity, privacy and ERP space. Prior to joining G2, Preethica spent three years in market research for enterprise systems, cloud forecasting, and workstations. She has written research reports for both the semiconductor and telecommunication industries. Her interest in technology led her to combine that with building a challenging career. She enjoys reading, writing blogs and poems, and traveling in her free time.

Application Servers Software

This list shows the top software that mention application servers most on G2.

Open source platform for mission-critical computing

IBM WebSphere Hybrid Edition is a comprehensive suite designed to modernize Java applications and infrastructure, facilitating a seamless transition to cloud-native environments. It combines traditional WebSphere Application Server offerings with advanced modernization tools, enabling organizations to optimize their existing Java runtimes, operations, and architectures. This integrated approach supports deployments across on-premises systems and major public clouds, utilizing virtual machines, containers, and Kubernetes. Key Features and Functionality: - Versatile Runtime Options: Includes WebSphere Application Server Network Deployment, WebSphere Application Server Base, and WebSphere Liberty Core, offering flexibility to meet diverse application requirements. - Modernization Tools: Features IBM Cloud Transformation Advisor and Mono2Micro, which assist in assessing and transforming monolithic applications into microservices, streamlining the modernization process. - Cloud-Native Development Support: Provides a lightweight, efficient runtime optimized for containerized and Kubernetes-based deployments, facilitating the development of new cloud-native applications. - Flexible Licensing Model: Offers a ratio-based licensing system, allowing organizations to allocate resources effectively across different runtime environments based on their specific needs. Primary Value and Solutions Provided: IBM WebSphere Hybrid Edition addresses the critical need for digital transformation by enabling organizations to modernize their Java applications and infrastructure efficiently. It reduces technical debt, enhances operational efficiency, and supports the adoption of cloud-native architectures. By offering a unified platform with flexible deployment options and robust modernization tools, it empowers businesses to innovate while maintaining the reliability and security of their existing systems.

The Eclipse Foundation provides our global community of individuals and organizations with a mature, scalable, and business-friendly environment for open source software collaboration and innovation.

Oracle WebLogic Server 12c is the #1 application server across conventional and cloud environments. It is the cornerstone of Oracle cloud application foundation, the industry's most complete, best-of-breed platform for developing cloud applications.

IntelliJ IDEA includes an amazing set of tools which work out-of-the-box: support for Maven, Gradle and STS; integration with Git, SVN, Mercurial; built-in Database Tools; and many more.

AWS Elastic Compute Cloud (EC2) is a web service that provides resizable compute capacity in the cloud, making web-scale computing easier for developers.

Oracle Linux brings the latest Linux innovations to market, delivering extreme performance, advanced scalability, and reliability for enterprise applications and systems along with worldwide, enterprise-class, low-cost support. Optimized for enterprise workloads, Oracle Linux is the only operating system to offer zero-downtime updates.

Payara Server is a fully supported, developer-friendly, open source application server. Payara Server's architecture is innovative, cloud-native and optimized for production deployments. The application server, compatible with Eclipse MicroProfile, is built and supported by a team of DevOps engineers dedicated to the continued development and maintenance of the open source software and committed to optimizing Payara Server as the best option for production Java EE applications.

NetBeans IDE. The Smarter and Faster Way to Code. Quickly and easily develop desktop, mobile and web applications with Java, PHP, C/C++ and more. NetBeans IDE is FREE, open source, and has a worldwide community of users and developers.

An application performance management solution that monitors every line of code to help resolve application issues, make user experience improvements, and monitor application performance.

Kemp LoadMaster with advanced load balancing capabilities, LoadMaster ensures the availability and resilience of applications across multi-cloud, hybrid-cloud, and data centers. LoadMaster includes WAF (Web Application Firewall) and authentication and single sign-on capabilities that enhance the security of applications and provide ongoing protection from attacks.

Apache Tomcat is an open source software implementation of Java Servlet and JavaServer Pages technologies and are developed under the Java Community Process.

Document management with IBM® FileNet® Content Manager helps you meet the growing challenge of managing enterprise content with greater speed, efficiency and accuracy. FileNet Content Manager is a document management engine that combines enterprise content, security and storage features with ready-to-use workflow and process management capabilities.

WildFly is a flexible, lightweight application server.

Graylog is a unified log management and SIEM platform built to help security and IT teams quickly collect, search, and analyze massive volumes of machine data. It gives organizations real-time visibility across their environments with an intuitive experience, fast search performance, and predictable costs. As a log management platform, Graylog centralizes data from virtually any source and enriches it through pipelines, dashboards, and powerful analytics—helping teams troubleshoot issues, monitor performance, and meet compliance requirements. Its scalable architecture supports deployments of any size across on-prem, cloud, or hybrid environments. Layered on this foundation, Graylog Security delivers modern SIEM capabilities, including risk-based alerting, UEBA-driven anomaly detection, guided remediation steps, and AI-powered investigation summaries. These features reduce noise, accelerate threat detection, and enable analysts of all skill levels to take action confidently. The result: fast time-to-value, operational clarity, and a no-compromise approach to security and observability.

Whether B2C, B2B, department or group: BSI CRM adapts to your business, your processes and your IT environment, and not vice versa.

PuTTY is a free implementation of Telnet and SSH for Windows and Unix platforms, along with an xterm terminal emulator.

The Chef enterprise automation portfolio includes 4 workload aligned solutions: Infrastructure Management; Compliance Audit; Application Delivery; and Desktop Management, all solutions are built upon Chef open-source tools: Chef Infra, InSpec, Habitat, Workstation and Automate.

FusionReactor is an Application Performance Monitor for JAVA. No other monitor will help you get to the root of issues faster and make apps more resilient.