Open the FramerForms plugin

Go to Logic → Pre-fill Form Inputs.

Select ‘Add the Pre-fill Form Inputs’

This will add the component to the canvas.

Drag this into your form.

Fill out the component details

With the component selected, go down to the ‘Pre-fill Form Inputs’ section.

Under Inputs, fill in the Input Name and URL Param fields. For each input that you want to prefill with a URL paramater, add a new input name and parameter name to the component.

Test your form by publishing this site and navigating to the URL with the prefilled parameters.

To do this:

Create a prefilled parameter for a Name field to be John by having a URL like:

https://example.com/?name=John

When you open the page, the input with the name ‘Name’ will be prefilled with ‘John’