The Lightning:recordForm component is one of the most powerful components that Salesforce offers that allows the user to edit and insert data into a Salesforce object, with minimal code. It can be used to present record form in edit mode, detail view, and readOnly view.

To create a simple contact form, you will need a code snippet that contains the recordForm component. Notice this code example does not include any Apex logic:

<aura:component>
    <aura:attribute name="newContact" type="String[]" default="['LastName','Email','Phone']" /> 
     <Lightning:recordForm 
         objectApiName="Contact" 
         layoutType="COMPACT" 
         fields="{!v.newContact}"
         columns="2"
         mode="edit"
         onsubmit="{!c.handleSubmit}" />
</aura:component/>