---
title: "Drupal Templates: How to Control the Frontend"
lang: en
type: knowledge
canonical: https://www.arocom.de/en/knowledge/drupal/templates
alternate: https://www.arocom.de/wissen/drupal/templates
author: "Axel Roth"
last_updated: 2026-07-29
---

# Drupal Templates: How to Control the Frontend

Drupal templates define how content is displayed in the [frontend](https://www.arocom.de/en/knowledge/development/frontend).
They separate content from design and give frontend developers full
control over the output HTML. Drupal uses Twig as its template
engine, secure, performant, and easy to learn. arocom has been
building custom templates for Drupal projects since 2012 and relies
on clean, semantic HTML that serves both machines and humans.

## Drupal Templates: How to Control the Frontend

Templates are the link between your content and what
users see. In Drupal, templates define the HTML for
pages, blocks, fields, and every other component of your
website. The separation of content and presentation is an
architectural principle in Drupal, and templates are the mechanism
that implements this separation.

## Twig: Drupal's Template Engine Since Drupal 8

Since Drupal 8, Drupal uses Twig as its template engine. Twig
is secure because it does not allow PHP code in templates.
This prevents an entire class of security vulnerabilities that
were possible in older Drupal versions.

Twig is readable. The syntax is intuitive and easy to learn
for frontend developers, even without deep PHP knowledge.
Variables, loops, and conditions cover most use cases.

Twig is performant. Templates are compiled into PHP
and cached. The result: fast page delivery
without template overhead.

## The Template Hierarchy: From General to Specific

Drupal uses a template hierarchy with naming conventions.
You can override templates at every level:

**Page level.** The basic structure of the page: header, content
area, sidebar, footer.

**Node level.** The display of a content type: article,
product, event. A separate template for each type.

**Field level.** The display of individual fields: image, text,
date. You control the HTML down to the field level.

**Block level.** Reusable content blocks such as
navigation, sidebar widgets, or call-to-action elements.

This hierarchy means: you can precisely control your website's
HTML without modifying Drupal Core. This
makes updates safe and your customizations sustainable.

## Using Templates Correctly: Clean HTML for Humans and Machines

The goal is not just a pretty design. Good templates
produce semantic HTML that is accessible and
understood by AI systems.

**Semantic HTML elements.** article, section, nav, aside
instead of div soup. This helps screen readers and AI systems
understand your content.

**ARIA labels.** Accessibility starts in the template.
Drupal provides ARIA attributes in core, your templates
must preserve them.

**Performance.** Fewer DOM elements, fewer CSS classes,
less markup overhead. Clean templates are fast
templates.

arocom reviews template quality for semantics,
accessibility, and performance in every project. This is part
of our standard process.

## Does Your Drupal Website Need Better Templates?

The [Future Check](https://www.arocom.de/en/future-check) examines your existing
Drupal installation for template quality, accessibility,
and performance. Our team responds within 4 business hours
on weekdays.

**From arocom projects:**

- For [CJD](https://www.arocom.de/en/references/cjd) (an NGO with ~11,000 employees) we relaunched the platform together with 21TORR and rolled out WCAG 2.1 AA. The Drupal 9 relaunch took second place in the Social/Community category at the Splash Awards 2023; the platform now runs on Drupal 11.
- At COFAD the challenge wasn't the tech, it was the cross-linking: consultants, projects, topics, all interconnected, all searchable. Drupal 11 with 20 tailored modules, a Search API index, and an Entity Browser workflow made that everyday business.

### Do I need PHP knowledge for Drupal templates?

No. Twig templates do not require PHP. The Twig syntax is easy to learn for frontend developers with HTML and CSS experience. For complex logic, there are preprocess functions in PHP that prepare data before it is passed to the template.

### What is the difference between a template and a theme?

A theme is the entirety of all templates, CSS files, and assets that define the appearance of a Drupal website. Templates are individual files within the theme that define the HTML for specific elements.

### Can I customize a ready-made theme?

Yes, via a subtheme. You inherit the functionality of the base theme and only override the templates you want to change. This makes updates to the base theme safe.

### How do templates affect performance?

Clean templates with little markup overhead improve performance. Twig compiles templates into PHP and caches them. Complex template logic should be moved to preprocess functions.

## Read more

- [Drupal Theming](https://www.arocom.de/en/knowledge/drupal/theming): Custom design without core hacks
- [Drupal Views](https://www.arocom.de/en/knowledge/drupal/drupal-views): Display data flexibly
- [Responsive Design 2026](https://www.arocom.de/en/knowledge/drupal/responsive-webdesign): Mobile-first is no longer enough
- [Future Check (Audit)](https://www.arocom.de/en/future-check): Independent analysis of your installation