Freebies offered for National Coffee Day

Day celebrating java is Tuesday, September 29

(Samantha Reichman/CNN)

Several chains are offering freebies on National Coffee Day, which is Tuesday, September 29.

Dunkin' Donuts: Free medium cup of Dunkin' Donuts hot or iced dark roast coffee. Limit one per guest available at participating locations.

Krispy Kreme: Free small coffee and original glazed donut

Pilot Flying J: Free 16-ounce cup of coffee when customers display an online coupon available on the company's Facebook page.

Whole Foods: It's been celebrating National Coffee Day all month, giving customers coffee for just 25 cents. That coffee purchase could help support a good cause. If you buy an Allegro Coffee for a quarter, Whole Foods will donate $1 to the Whole Planet Foundation.

Wawa: Free coffee in the size of your choice

JetBlue: National Coffee Day in the air! JetBlue's Mint customers can drink espresso brews from the Brooklyn Roasting Company.

Staples: Post a photo on social media with your coffee mug and #OfficeMugShot. You'll have the chance to win a free coffee prize pack.