---
title: "Events and hooks"
manual: "TYPO3 Explained"
version: "13.4"
permalink: "https://docs.typo3.org/permalink/t3coreapi:hooks@13.4"
source: "ApiOverview/Events/Index.rst"
rendered: "2026-10-01T12:09:27+00:00"
---

# Events and hooks {#hooks}

Events and hooks provide an easy way to extend the functionality of the TYPO3 Core and
its extensions without blocking others to do the same.

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Signals and slots and all related classes have been removed from the
Core. Use PSR-14 events instead.

**Contents:**

-   [Extending the TYPO3 Core](https://docs.typo3.org/permalink/t3coreapi:extending-the-typo3-core@13.4)
-   [Event dispatcher (PSR-14 events)](https://docs.typo3.org/permalink/t3coreapi:event-dispatcher-psr-14-events@13.4)
-   [Event list](https://docs.typo3.org/permalink/t3coreapi:event-list@13.4)
-   [Hooks](https://docs.typo3.org/permalink/t3coreapi:hooks@13.4)
-   [JavaScript Event API](https://docs.typo3.org/permalink/t3coreapi:javascript-event-api@13.4)