> For the complete documentation index, see [llms.txt](https://codalin.gitbook.io/nodalin-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://codalin.gitbook.io/nodalin-docs/nodes-reference/families.md).

# Families

The nodes in Nodalin are grouped into four families, each defined by the type of operation its nodes perform rather than strictly by their output data type. This abstraction lets nodes from different families interact seamlessly, without needing manual data conversion.

{% hint style="info" %}
Connection compatibility is determined by the properties of each node — see [*How Connections Work*](/nodalin-docs/quick-guide/nodes.md#how-connections-work) for details.
{% endhint %}

In the following sections, we’ll take a closer look at each node family.

<figure><img src="https://937151318-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F44MuVIHBk5o5yfcGn64w%2Fuploads%2FMWxtodeLGvqNWar4aVoc%2Fimage.png?alt=media&amp;token=3ca824fa-7b2a-4180-bf3d-c663d3638074" alt="" width="563"><figcaption></figcaption></figure>