Preheat your oven to 350°F (180°C). Line a 9×13-inch baking dish with parchment paper.
In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until well combined. Beat in the eggs, one at a time, until well combined.
In a separate bowl, whisk together the flour, cocoa powder, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, stirring until just combined.
Stir in the diced strawberries and chocolate chips. Pour the batter into the prepared baking dish.
Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Allow the brownies to cool in the pan before slicing and serving.