You can easily get free large fries at McDonald’s through several promotions and rewards. One of the most popular ways is by downloading the McDonald’s app, which often provides deals like free fries with any purchase. Another great option is joining MyMcDonald’s Rewards, where points can be redeemed for free food. Don’t forget to check your receipts and participate in the www.mcdvoice.com survey, as completing it often rewards you with coupons for free fries or other items. Special events, like National French Fry Day, and local promotions also give you opportunities to enjoy McDonald’s crispy fries for free.