Field Types

42Forms supports the following field types. Field types are assigned during form creation (manually or via AI generation) and can be changed in the form editor.

Text

Single or multiline text input.

Config	Type	Default	Description
multiline	boolean	false	Show as textarea instead of single-line input
default_value	string	-	Pre-filled value for new submissions
read_only	boolean	false	Display as non-editable
primary_key	boolean	false	Mark as primary key for row identification

Numeric

Number input with optional formatting.

Config	Type	Default	Description
format	string	-	Display format: currency, percentage, or none
range_min	number	-	Minimum allowed value
range_max	number	-	Maximum allowed value
round_precision	number	-	Decimal places to round to
default_value	string	-	Pre-filled value

Date

Date picker with optional time component.

Config	Type	Default	Description
include_time	boolean	false	Show time picker alongside date
default_value	string	-	Pre-filled value (ISO format)

Select

Dropdown with predefined options. Supports cascading (parent-child) dropdowns.

Config	Type	Default	Description
allow_multiple	boolean	false	Allow selecting multiple values
default_value	string	-	Pre-selected value

Options are managed in the field editor. For Snowflake-synced projects, options can be auto-loaded from distinct column values.

Checkbox

Boolean toggle input.

Config	Type	Default	Description
default_value	string	-	Pre-checked state (true/false)

Lookup

Autocomplete field that searches values from another project.

Configured by linking to a target project and field. As the user types, matching values from the target field are suggested.

Label

Read-only display field. Cannot be edited by users. Useful for system-generated values, formulas, or informational text.

Variant

Displays JSON or complex structured data. Read-only in the form view, useful for Snowflake VARIANT columns.