angular ng-bind-html
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.1/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.1/angular-sanitize.min.js"></script>
<div ng-controller="foo">
<span ng-bind-html="bar"></span>
</div>
JavaScript
angular.module('myapp', ['ngSanitize'])
.controller('foo', function($scope) {
$scope.bar = "<h1>this is bar</h1>";
});
angular.bootstrap(document, ['myapp']);