How can I autofill a second input field on a form with a value entered in a previous input field using Webflow?

Published on
September 22, 2023

To autofill a second input field on a form with a value entered in a previous input field using Webflow, you can follow these steps:

  1. Add two input fields to your form: Start by adding the first input field where users will enter their value, and a second input field where the value will be autofilled.

  2. Assign IDs to the input fields: Select each input field in Webflow designer and assign unique IDs to them. To do this, go to the Settings panel on the right-hand side, find the "ID" field, and input a unique identifier for each input.

  3. Add custom code: To accomplish the autofill functionality, you'll need to add custom code to your Webflow project. To do this, follow these steps:

  • Go to the Project Settings by clicking on the gear icon in the left-hand sidebar.

  • Select the Custom Code tab.

  • In the Footer Code section, add the following JavaScript code:

    ```javascript

    ```

    Replace 'firstInputId' and 'secondInputId' with the actual IDs you assigned to the input fields in step 2.

  1. Publish your site: After adding the custom code, save your changes and publish your Webflow site.

With these steps completed, the second input field will now be automatically filled with the value entered in the first input field as the user types.

Note: Custom code functionality and access to the Footer Code section are available on Webflow's paid plans.

Additional Questions:

  • How can I autofill form fields in Webflow using JavaScript?
  • What is the process for using custom code in a Webflow project?
  • Can I autofill input fields in Webflow without custom code?