# Add an Extension

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Wisej extensions are packages of code that provide additional functionality beyond what you can do with base Wisej.NET. For a complete list of all Wisej.NET extensions, see here: <https://github.com/iceteagroup/wisej-extensions>

Let's create a project that showcases how to use the CKEditor extension. The CKEditor extension is a rich text editor. You can find more information on it[ here.](https://docs.wisej.com/extensions/extensions/ckeditor)

Start by creating a new C# project with the Wisej.NET Web Page Application template.

In the Solution Explorer, right-click and choose "Manage Nuget Packages"

<figure><img src="/files/vSHToMcRCmJTFI88aHqh" alt=""><figcaption></figcaption></figure>

Click "Browse" and type "Wisej CKEditor" in the search bar

<figure><img src="/files/yE6wEqTIb2FFw68CBNpR" alt=""><figcaption></figcaption></figure>

Select the version that matches the version of Wisej.NET that you are using-in this case, Wisej-3. Click Install.

<figure><img src="/files/7NU2vRtELy8UUzLlbu45" alt=""><figcaption></figcaption></figure>

A popup appears. Click "Apply"

<figure><img src="/files/Nj6dq943GNjkvapev3K7" alt=""><figcaption></figcaption></figure>

Open the designer. Then open the toolbox. Search for "CKEditor". Then drag the CKEditor into the designer. Resize it to make it bigger.<br>

<figure><img src="/files/tUvsV4cjdum5U7C6MDnT" alt=""><figcaption></figcaption></figure>

Run the project. It should look like this:&#x20;

<figure><img src="/files/BGuFbLr0bJw5iJxThnvw" alt=""><figcaption></figcaption></figure>


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