# Build your own UI (custom flows)

A **custom flow** refers to a user interface built entirely from scratch using the Clerk API.

Custom flows are considered **advanced** and are generally not recommended for most use cases. They require more development effort and are not as easy to maintain as the prebuilt components. However, if [prebuilt components](https://clerk.com/docs/reference/components/overview.md) don't meet your specific needs or if you require more control over the logic, you can rebuild the existing Clerk flows using the Clerk API.

**If you choose this approach, the Clerk support team will do their best to assist you, but they cannot guarantee a resolution due to the highly customized nature of custom flows.**

The custom flow guide that you need will depend on the settings you've configured in the Clerk Dashboard. For example, if you've enabled email and password, then you'd choose the [custom flow for email and password](https://clerk.com/docs/guides/development/custom-flows/authentication/email-password.md). It's likely you'll need to combine many of the guides to build out your application.

**To get started, choose the guide that best fits your needs from the navigation on the left.**

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