TYPO3 extension to showcase TYPO3 Backend capabilities

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TYPO3 CMS Backend Styleguide

What is it?

Styleguide is a TYPO3 extension. It provides a backend module that hooks into the 'Help' menu of the top toolbar of the TYPO3 Backend. It can also create a page tree to show examples.

This extension in maintained in the official TYPO3 github organization.

Styleguide is developed "core-near": When TYPO3 core adds or deprecates features covered by this extension, core developers strive to keep it updated, reflecting these changes.

Styleguide is a reference to show a lot of TYPO3 backend features, often relevant for own extensions:

  • A set of snippets showing how to use default backend functionality like tables, buttons, boxes or notifications.
  • A huge set of 'TCA' examples, showing "all" features of the backend editing forms.


  • The extension is interesting for backend extension developers as a reference to see how casual stuff like buttons and other HTML related things are solved or used in the backend, and to copy+paste solutions. Additionally, the TCA examples is a near-complete show-case of FormEngine (editing records in the backend). Developers will see new things they did not know yet. Guaranteed!

  • The extension can be interesting for technical project managers to get an idea of what the backend editing is capable of out-of-the-box and which parts can be sold to customers without adding expensive implementation burdens to developers.

  • Styleguide is a "require-dev" dependency of the TYPO3 CMS core mono repository. It is used by core developers to test and verify changes to JavaScript, HTML and PHP code do not break layout or functionality of backend modules. The extension is also used in core backend acceptance tests to verify FormEngine details do not break when developing core patches.

  • Styleguide is used within the official core documentation to provide examples, screenshots and possible usages of core functionality. Especially the TCA reference heavily relies on it.

  • Styleguide comes with a simple set up of unit, functional and acceptance tests that are executed by github action workflow "tests.yml" - or locally if desired. This setup is documented as a working test set up example within the official TYPO3 explained testing section and can be used as a copy+paste boilerplate in own extensions.


Styleguide comes as a TYPO3 extension for the TYPO3 backend. It appears as backend module within the "Help" section of the top toolbar. After initial installation, it is advisable to let styleguide create an example page tree with records by clicking the "TCA / records -> Create styleguide page tree with data", and waiting for a couple of seconds for the system to crunch the data.


With composer based TYPO3 installations, styleguide is easily added to the project.

TYPO3 v11 based project:

composer require --dev typo3/cms-styleguide:^11

TYPO3 v10 based project:

composer require --dev typo3/cms-styleguide:^10
bin/typo3 extension:activate styleguide

TYPO3 Extension Repository

For non-composer projects, the extension is available in TER as extension key styleguide and can be installed using the extension manager.

Running tests

Styleguide comes with a simple demo set of unit, functional and acceptance tests. It relies on the runTests.sh script which is a simplified version of a similar script from the TYPO3 core. Find detailed usage examples by executing Build/Scripts/runTests.sh -h and have a look at .github/workflows/tests.yml to see how this is used in CI.

Example usage:

Build/Scripts/runTests.sh -s composerUpdate
Build/Scripts/runTests.sh -s unit

Tagging and releasing

packagist.org is enabled via the casual github hook. TER releases are created by the "publish.yml" github workflow when tagging versions using tailor. The commit message of the commit a tag points to is used as TER upload comment.


composer install
.Build/bin/tailor set-version 11.0.3
git commit -am "[RELEASE] 11.0.3 Bug fixes and improved core v11 compatibility"
git tag 11.0.3
git push
git push --tags


This project is released under GPLv2 license. See LICENSE.txt for details.