A default value pre-fills a form field the moment the form loads, so the most common answer is already selected for your visitor. It's a small touch that speeds up completion — and visitors can always change it before they submit. Default values are set per field, in the field editor's Advanced section, on any custom field you add to a form.
How to set a default value for a form field in Cornerspot
You set a default from the form's Builder. Here we add a custom Single Select field, then give it a default option — but the same Advanced section works for every custom field type.
1. Add (or open) the field in the Builder
From the form's detail page, click + Add Field in the Builder. Default values live on custom fields, so switch to the Custom Field tab.


2. Define the field
Give the field a Label (for example "Company Size"), a Field Key (lowercase with underscores, used for data mapping), and a Data Type. The default-value input adapts to the type you choose — a date picker for Date fields, a checked / unchecked choice for Yes / No, a dropdown of your options for Single Select, checkboxes for Multi Select, and a number or text box for the rest.

3. Add the choices (for select fields)
Because this is a Single Select, add the options people can choose from. Each option has a label visitors see and a value stored with your data; click Add option for each choice. Then click Add Custom Field to add it to the form.


4. Open the field's editor
Click the field's card in the Builder to open its Edit Field drawer.

5. Expand the Advanced section
Inside the editor, click Advanced to reveal the Default Value setting ("Pre-filled value when the form loads.").

6. Choose the default value
Pick the value you want pre-filled. For a Single Select that's a dropdown of your options plus a "No default" choice; other field types show the matching input (date picker, number box, checkboxes, and so on). The value you set here is what appears when the form first loads.


7. Save
Click Save to apply the default. That's it — the field now loads with your default already selected, and visitors can change it whenever they need to.


When default values help
- Pre-select the answer most people give — like a region, plan tier, or company size — so they can skip straight to submitting.
- Set a sensible starting point for number, date, or currency fields.
- Remember a default is a suggestion, not a lock: visitors can always change it before they submit.
- Defaults are set per field, so you can tailor each one to the audience the form is for.
