---
title: "TYPO3 Extensions: Create custom functions"
url: "https://nitsantech.de/en/typo3-glossar/typo3-custom-extensions"
description: Create custom TYPO3 extensions. Customize your website and add features that meet your needs.
date: 2024-10-14
modified: 2025-10-30
lastUpdated: 2026-02-25
---

# TYPO3 Extensions: Create custom functions

[ TYPO3 Glossary ](https://nitsantech.de/en/typo3-glossary)Custom Extensions
=================

 [

  Cost  ](https://nitsantech.de/en/typo3-glossar/typo3-cost) [

  Database  ](https://nitsantech.de/en/typo3-glossar/typo3-database)

  <a id="c16387"></a>Want to add unique features to your [**TYPO3**](https://nitsantech.de/en/blog/typo3) site? Custom extensions let you build exactly what you need. Whether it’s a special form, a new function, or anything else, you can create or customize [**TYPO3 extensions**](https://t3planet.de/en/typo3-extensions) to make your site work just the way you want. It’s a great way to make your [**TYPO3 Website**](https://nitsantech.de/en/blog/typo3-website) stand out!