---
title: "Extender: Extbase class extending on steroids"
manual: "extender"
version: "main"
permalink: "https://docs.typo3.org/permalink/evoweb/extender:start@main"
source: "Index.rst"
start: true
rendered: "2026-10-16T14:34:49+00:00"
---

# Extender: Extbase class extending on steroids {#start}

-   *Extension key:* extender
-   *Package name:* evoweb/extender
-   *Version:* main
-   *Language:* en
-   *Author:* Sebastian Fischer
-   *License:*

    This document is published under the
    [Open Publication](https://www.opencontent.org/openpub/).
    license.

-   *Rendered:* Fri, 16 Oct 2026 14:34:49 +0000
-   *Copyright:* 2014-2023

---

Makes extending classes fully transparent

The content of this document is related to TYPO3,
a GNU/GPL CMS/Framework available from [http://typo3.org](http://typo3.org)

---

**Table of Contents**

-   [Introduction](https://docs.typo3.org/permalink/evoweb/extender:introduction-1@main)
-   [Installation](https://docs.typo3.org/permalink/evoweb/extender:installation-1@main)
-   [Configuration](https://docs.typo3.org/permalink/evoweb/extender:configuration-1@main)
-   [Breaking change](https://docs.typo3.org/permalink/evoweb/extender:breaking-change@main)
-   [Testing](https://docs.typo3.org/permalink/evoweb/extender:testing-1@main)