WTForms provides many field types.

Here are the most common ones you’ll use in Flask apps.

Text inputs

• StringFieldStringField
• TextAreaFieldTextAreaField
• PasswordFieldPasswordField

Numeric/date

• IntegerFieldIntegerField
• DecimalFieldDecimalField
• DateFieldDateField

Email

• EmailFieldEmailField (WTForms) or StringFieldStringField + Email()Email() validator

Choices

• SelectFieldSelectField
• RadioFieldRadioField
• SelectMultipleFieldSelectMultipleField

Example:

from wtforms import SelectField
 
role = SelectField(
    "Role",
    choices=[("user", "User"), ("admin", "Admin")],
)

from wtforms import SelectField
 
role = SelectField(
    "Role",
    choices=[("user", "User"), ("admin", "Admin")],
)

Checkboxes

• BooleanFieldBooleanField

File uploads

• FileFieldFileField

File uploads require enctype="multipart/form-data"enctype="multipart/form-data" in the HTML form.

Submit buttons

• SubmitFieldSubmitField

Tip: keep only one submit field per form unless you really need multiple actions.