How to Unescape HTML in Lightning Component

Use  <aura:unescapedHtml /> component to unescape the HTML in Lightning Component.

Example

Lightning Component

<aura:component implements="flexipage:availableForAllPageTypes">
    <aura:attribute name="strURL" type="String" />
    
    <aura:handler name="init" value="{!this}" action="{!c.doInit}" />
    <lightning:card>
        <p class="slds-m-around--xx-large">
            <h2>Welcome to my <aura:unescapedHtml value="{!v.strURL}"/></h2>
        </p>
    </lightning:card>
</aura:component>

JS Controller

({
     doInit : function(component, event, helper) {
        let strURL = '<a href="https://www.salesforcecodecrack.com/" target="_blank">Salesforce Code Crack</a> Blog.';
        component.set('v.strURL', strURL); 
     }
})

Resource
aura:unescapedHtml