Last updated: 2026-11-10

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Jte vs Thymeleaf - advantages and disadvantages

Thymeleaf and jte both render HTML on the server, but differ in syntax and integration helpers. We use the same contact list to compare their templates and the work involved in a Spring Boot application.

Thymeleaf

Thymeleaf has been around since 2011 and has become the standard for server-side rendering with Spring Boot in recent years. A typical template might look like this:

Such a template can be opened directly in the browser - all attributes of the Thymeleaf dialect (th:if, th:each, etc.) would simply not be evaluated. Only within Spring MVC are the parameters provided as a model and evaluated by the template engine.

Thymeleaf has a seemingly endless set of commands - ${...}, *{...}, #{...}, @{...}, and ~{...} are just the beginning. Thymeleaf's Spring integration provides the SpringStandard dialect and supports Spring MVC form binding. Additional recommended extensions are available for layouts and for the integration of Spring Security. Here is an article for the Thymeleaf setup in Spring Boot.

Jte

When creating jte, the focus was on minimalism: the entire command set can be learned quickly and intuitively. Here is an example of what a jte template might look like:

Jte compiles templates into Java classes; Kotlin templates use the kte support. Precompilation moves this work into the build. For Spring Boot 4, the jte starter is jte-spring-boot-starter-4; Spring Boot 3 applications use jte-spring-boot-starter-3. However, there are no specific helpers for many typically required functionalities, such as form handling or Spring Security integration. But since Spring MVC already provides many classes here, the amount of code required is not that much in the end.

Kotlin templates have the extension .kte. IDE support helps with navigation and completion, but the template build remains the check for compilation errors. When a coding agent edits templates, we should ask it to compile them and verify the rendered page. Here is a full article for the jte setup in Spring Boot.

Advantages and disadvantages

Both engines are suitable for productive use with Spring MVC. Thymeleaf offers established extensions for layouts and Spring Security. Its expressions and attributes take some practice, but many common web features already have integration support.

Jte has a compact syntax with ordinary Java or Kotlin expressions. Precompiled templates avoid compilation at request time; benchmark your own pages if rendering performance affects the decision. If you need a new function in the template, you often have to implement it yourself - that is not necessarily a disadvantage.

Conclusion

For our contact list, both engines provide the required HTML. Choose based on the template style and integration helpers your team needs, then check a real form as well as a read-only page.

Use the Bootify Builder to configure your own Spring Boot application, including a Thymeleaf or jte frontend. This will prepare the executable app according to your preferences and with all the necessary helpers.

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Further readings

Thymeleaf documentation
Learn jte