Krispy Kreme Giving Away Free Coffee and Donuts Krispy Kreme is pulling out all the stops for National Coffee Day this year. This time instead of just coffee the chain will giveaway donuts. Yep, you heard that right free coffee and donuts and you don’t even have to buy anything extra to get the freebies. National Coffee Day is September 29. Which is better, glazed donuts or filled donuts?