Thymeleaf Cheat Sheet

This content was generated with the assistance of AI and should be verified against the official documentation before being relied on in production.

The reference material consulted while preparing these pages is listed in the section bibliography.

A single-page, colour-coded summary of the Thymeleaf essentials, written against Thymeleaf 3.1.5, Spring Boot 4.1.1 (Spring Framework 7.0.9), Layout Dialect 4.0.1, htmx 2.0 and htmx-spring-boot 5.2.0 (versions verified 2026-10-07) — dependencies, template locations, template modes and the spring.thymeleaf.* properties, the five expression types and the basic objects, literals, operators and preprocessing, one line per utility object, the th:* attributes by purpose with their precedence order, iteration status and truthiness, fragments, th:remove values and the Layout Dialect, comments, blocks and inlining, Spring forms and #fields, internationalization, conversion and links, Spring Security, fragment rendering and htmx, reactive rendering, testing, the dialect and processor types, a template-security strip, and a strip of what changed since older tutorials — handy for quick memorization or as a downloadable PDF desk reference.

For the full explanation, every option, and additional examples, see the dedicated pages:

Start here — Thymeleaf.

Fragments and layouts — Fragments, Layouts & the Layout Dialect, and Reusable UI Components.

Assets and other outputs — Styling & Front-end Assets and Emails & Text Templates.