> For the complete documentation index, see [llms.txt](https://docs.umbraco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.umbraco.com/umbraco-cms/13.latest/extending/backoffice-ui-api-documentation.md).

# Backoffice UI API Documentation

A library of API Reference documentation is auto-generated from the comments within the Umbraco Source Code.

{% hint style="info" %}
A new backoffice for Umbraco CMS is currently being worked upon. It is expected to be released with Umbraco version 14 in May 2024.

We have gathered all information and resources about the project in one place, giving you a full overview of what we're working on. You will also be able to find information about how to get involved in the project.

You can find it all on [docs.umbraco.com/umbraco-backoffice](https://docs.umbraco.com/umbraco-backoffice).
{% endhint %}

## [Backoffice UI](https://apidocs.umbraco.com/v13/ui)

Angular, JavaScript, CSS & Less UI API references for building Umbraco backoffice components. V10 is using minified versions of the following files:

* The umbraco.directives
* The umbraco.services
* The umbraco.resources

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Opens a documentation browser that is different from the documentation section you're viewing now.
{% endhint %}

## [UI Examples](https://our.umbraco.com/packages/developer-tools/ui-examples/)

There is a package available called 'UI Examples'. This package adds a new 'UI Examples' section to your Umbraco instance with working examples of how to customize the backoffice.

{% hint style="info" %}
Opens a documentation browser that is different from the documentation section you're viewing now.
{% endhint %}


---

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