Preheat your oven to 350°F (175°C).
Combine crushed pretzels, sugar, and melted butter in a bowl.
Press the pretzel mixture into a 9x13 inch baking dish.
Bake for 10 minutes, then cool completely.
In a mixing bowl, beat softened cream cheese and sugar until smooth.
Fold in the whipped topping gently into the cream cheese mixture.
Spread the cream cheese layer over the cooled pretzel crust.
In a saucepan, combine water and strawberry gelatin, stirring until dissolved.
Remove from heat and let cool slightly, then mix in diced strawberries.
Pour the strawberry mixture over the cream cheese layer and refrigerate until set.
Slice and serve chilled, garnished with additional strawberries if desired.
