# How to Set Field Values

Aside from the user manually entering values for form fields, there are a variety of ways you can automatically set the values for both form and hidden fields.

## Default Value

You can set the default value of your field by selecting it in the `Designer`, going to the `Properties` tab, and setting a value under `Default Value`.

## URL Parameters

If you chose to send your users to your Feathery-hosted form rather than embed your form, you can pre-populate fields in your form by adding the values to your URL. The structure of field values set from our hosted form URLs looks like `form.feathery.io/to/<form slug>/?<field-id>=<field-value>`. To specify multiple values for a given field, you can specify the query parameter in the URL multiple times.

## Custom Logic

Using Feathery's [custom logic](/platform/build-forms/advanced-logic.md) feature, you can update field values without writing code or with basic Javascript.

## Embed Library

If you've embedded your form via Feathery's [embed library](/develop/react.md), you can use [a function](/develop/react/api-guide/setfieldvalues.md) to easily set field values for that user.

## Public API

You can send requests to Feathery's [public API](https://api-docs.feathery.io/#create-field-value-for-user) to update field values for any of your users.

## Third-Party Integrations

A number of our data enrichment integrations, such as [Plaid](https://www.feathery.io/integrations/plaid), will automatically populate the fields that you map to their data properties when the user activates them.


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