Top 10 Best Apache Tomcat Alternatives in 2026

Red Hat JBoss Enterprise Application Platform serves as an application server platform that runs Jakarta web applications and other Jakarta EE APIs in a production-oriented runtime, which goes beyond a servlet-only container like Apache Tomcat. It provides managed server components such as application deployment handling, configuration and lifecycle operations, and runtime services typically associated with full application server behavior rather than just request routing. It also aligns with enterprise deployment patterns that require consistent behavior across updates, scaling events, and multi-environment promotion for managed applications.

A common tradeoff versus Apache Tomcat is operational complexity, since an application server platform adds more managed subsystems and container lifecycle features than a single servlet container. JBoss Enterprise Application Platform fits situations where teams need managed Jakarta EE services such as container-managed features and enterprise middleware integration, or where standardized server behavior is required for multiple applications deployed to shared infrastructure. It is also a strong fit when application runtime consistency across server lifecycles matters more than minimizing moving parts.

IBM WebSphere Liberty is a Java runtime designed to host Jakarta Servlet and Jakarta Server Pages applications using a Tomcat-like deployment workflow with WAR packaging and HTTP endpoints. It focuses on a modular architecture where server behavior is composed from enabled features for web containers, security, and management, which supports consistent container behavior across environments. For teams comparing Java application server options to Apache Tomcat, Liberty fits when enterprise governance is required alongside the application container model.

A key tradeoff versus Apache Tomcat is that Liberty adds an operational surface area that includes feature configuration and container runtime governance for environments that need auditability and access control. Liberty is a strong fit for production systems that require Role-Based Access Control for administrative operations and that need vendor-supported runtime behavior under change-control processes. A common usage situation is migrating existing servlet and JSP workloads to a managed runtime where application deployment remains familiar but runtime configuration must align with enterprise administration and compliance needs.

Undertow is a Java HTTP server that can run Servlet and Jakarta Server Pages workloads through an embedded style architecture, which aligns it closely with common Tomcat migration and compatibility needs. It supports the Servlet container layer that many Tomcat users expect while keeping the runtime focused on the HTTP request pipeline rather than a full application server feature set. Undertow is frequently selected when teams need tighter control over the surrounding Java process, including custom startup behavior and in-process lifecycle management.

A key tradeoff versus running Apache Tomcat is that Undertow’s feature surface is narrower for container conveniences that some Tomcat users rely on, so additional integration work may be needed for uncommon Tomcat modules or extensions. Undertow fits well for services that embed the web layer inside a larger application, such as internal APIs, microservices, and platform components that already manage threading, routing, and deployment orchestration.

Apache TomEE keeps a Tomcat-style servlet container workflow while adding a wider Jakarta EE application-server surface around that foundation. It focuses on running Java web applications packaged as WAR files with extended Jakarta EE APIs provided by the same runtime.

Deployment, request handling, and configuration stay close to Tomcat expectations, while additional server capabilities reduce the need to pair separate frameworks. For teams moving off Apache Tomcat, Apache TomEE is a direct substitute when the target includes Java EE programming models beyond pure servlet and JSP.

Apache Geronimo runs Java server-side applications and supports a full Java EE stack beyond Tomcat’s servlet-container role. It is built as an Apache project from a modular server that can host Jakarta Servlet and JSP workloads while also covering broader Java EE specifications.

Configuration and runtime behavior are exposed through its admin interfaces and deployment lifecycle. Compared with an HTTP-first servlet container, it targets teams that want more bundled Java EE capabilities in the same server.

Eclipse Jetty is a Java servlet container that targets close overlap with Apache Tomcat for running Jakarta Servlet and Jakarta Server Pages web apps. It focuses on a configurable HTTP server stack and deployment of WAR-based applications with servlet request handling and lifecycle hooks similar to Tomcat.

Jetty also exposes extensive programmatic configuration through APIs and supports multiple runtime packaging patterns beyond just a WAR drop. For teams moving from Tomcat, Jetty is a practical substitute where the application contract is primarily servlet and JSP request-response behavior.

WildFly is a Java application server that covers Tomcat-style deployments while adding broader server capabilities for Jakarta EE workloads. It focuses on running WAR packaged web applications via HTTP request handling, while also supporting more enterprise patterns beyond a servlet container.

Configuration and deployment extend past Tomcat-style lifecycle basics with a management model for controlling server behavior. It is a strong migration path when the target is a full application server rather than only a servlet container replacement.

Open Liberty provides a lightweight Java runtime for running server applications that need Jakarta EE or MicroProfile APIs, not just a servlet container. It replaces Tomcat’s request handling with an application server model that includes container-managed configuration, security, and HTTP endpoint execution.

Deployment and runtime behavior are driven by its configuration and server lifecycle, which changes how web apps are packaged and managed compared with WAR-only servlet container usage. The free tier support is reflected in its pricing signal, making it feasible for teams testing runtime options.

Eclipse GlassFish is a Jakarta EE application server that runs Jakarta Servlet and JSP web apps, so it replaces Apache Tomcat when deployments need a broader Java web profile. It accepts HTTP requests and executes packaged server-side code, with deployment and runtime configuration for Java web applications.

GlassFish adds full application-server lifecycle support beyond a standalone servlet container, which matches teams moving from simple WAR execution to managed server behavior. It is positioned as a specialist option for Jakarta standards-based deployments.

Oracle WebLogic Server is a paid Java application server from Oracle, not a free reader like Apache Tomcat. It runs Jakarta Servlet and Jakarta Server Pages applications packaged as WAR files, handles HTTP request execution, and supports enterprise deployment and configuration.

WebLogic adds broader platform services than a servlet container, including integration controls for large Oracle-centric environments. This makes it a substitute when the target is a full application server footprint rather than Tomcat-style container-only hosting.