Looking for alternatives or competitors to Thymeleaf? Java Development Tools is a widely used technology, and many people are seeking popular, reliable software solutions with ui code extending, programming code extending, and customized branding. Other important factors to consider when researching alternatives to Thymeleaf include projects and templates. The best overall Thymeleaf alternative is Quartz Job Scheduler. Other similar apps like Thymeleaf are JRebel, MagicDraw, Rocket Visual COBOL (formerly a Micro Focus product), and Webswing Software. Thymeleaf alternatives can be found in Java Development Tools but may also be in Automation Testing Tools.
Quartz is a richly featured, open source job scheduling library that can be integrated within virtually any Java application - from the smallest stand-alone application to the largest e-commerce system.
JRebel is software for development and operations teams working with Java. JRebel allows users to instantly reload changes to Java classes, resources, and 80+ frameworks, configuration, and compiles quickly with the IDE, instead of Maven builds.
MagicDraw is the award-winning business process, architecture, software and system modeling tool with teamwork support. Designed for Business Analysts, Software Analysts, Programmers, QA Engineers, and Documentation Writers, this dynamic and versatile development tool facilitates analysis and design of Object Oriented (OO) systems and databases. It provides the industry's best code engineering mechanism (with full round-trip support for Java, C++, C#, CL (MSIL) and CORBA IDL programming languages), as well as database schema modeling, DDL generation and reverse engineering facilities.
Webswing is a web server that allows you to run any Java Swing, JavaFX, Applets, Netbeans application inside your web browser, exclusively using HTML5.
Diffblue is changing the way software is developed using Artificial Intelligence
The Eclipse Web Tools Platform (WTP) project extends the Eclipse platform with tools for developing Web and Java EE applications. It includes source and graphical editors for a variety of languages, wizards and built-in applications to simplify development, and tools and APIs to support deploying, running, and testing apps.
CodeMR is an architectural software quality and static code analysis tool that supports multiple languages (Java, Scala, Kotlin, C++) and has integrations for multiple IDEs (Eclipse and IntelliJ). CodeMR visualizes code metrics and high level quality attributes (Coupling, Complexity, Size) for C++, Java and Kotlin and Scala projects in different views, such as Package Structure, TreeMap, Sunburst, Dependency and Graph Views. The graph visualization technique applied in CodeMR is simple yet intuitive. CodeMR has different filtering options and supports custom queries. It visualizes high-level Object Oriented quality attributes and low level metrics. Quality attributes are derived from the combinations of several metrics. You can also create different HTML reports for the project. With Community Edition you can extract up to 50 source files and 60 classes.
Apache IvyDE is a Eclipse plugin designed to integrate Apache Ivy's dependency management into Eclipse.
Project Helium is a Java (JDK 24) microservice foundation designed to help teams move faster without compromising on quality. Whether you're launching a new product or modernizing legacy systems. It comes with modular integrations built for real-world backend systems—from environment configs and multi-tenant auth to observability and deployment pipelines. Features like TLS/mTLS, SSO, multi-OIDC provider support, and OpenTelemetry are included out of the box, making it easier to get production-ready infrastructure up and running quickly. It also supports LLM-based use cases through integration with LangChain4j, enabling teams to build AI-assisted features natively within Helidon services. Built on established patterns like Domain-Driven Design (DDD) and Hexagonal Architecture, it offers ready-to-use examples and a consistent layout that accelerate onboarding and promote long-term maintainability. Powered by Oracle Helidon SE 4—formerly Helidon Nima—Project Helium delivers unmatched performance, efficiency, and security through its lightweight runtime and virtual threads support.