TYPO3 v10 has reached end-of-life as of April 30th 2023 and is no longer being maintained. Use the version switcher on the top left of this page to select documentation for a supported version of TYPO3.

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Creating a new Extension

This chapter is not a tutorial about how to create an Extension. It only aims to be a list of steps to perform and key information to remember.

First you have to register an extension key. This is the unique identifier for your extension.

Kickstarting the Extension

Although it is possible to write every single line of an extension from scratch, there is a tool which makes it easier to start: The Extension Builder.

The Extension Builder comes with its own BE module and helps you to create the scaffolding of your extension and to generate all necessary PHP files. Then you can enhance these files with your own code.

After the extension has been written to the folder typo3conf/ext, you will be able to activate it locally and start using it.

Please refer to the Extension Builder's manual for more information.