White Castle is famous for its square-shaped sliders, known as White Castle Sliders, which have been a staple in American fast food since 1921.

Krystal is known for its small square-shaped sliders called Krystal Sliders, which are made with a thin patty, steamed bun, and diced onions.

McDonald's introduced the Big Mac Slider in 2019, a smaller version of its iconic Big Mac, featuring two beef patties, special sauce, lettuce, cheese, pickles, onions, and a sesame seed bun.

Wendy's Jr. Cheeseburger is a popular slider-sized burger, featuring a beef patty, American cheese, tomato, lettuce, pickles, onions, and ketchup on a toasted bun.

Steak 'n Shake is known for its Steakburgers, and it also offers a variety of sliders, including the classic Steak 'n Shake Slider, made with a thin patty, American cheese, lettuce, tomato, and onion.

Arby's Jr. Roast Beef Slider is a popular slider-sized sandwich, featuring thinly sliced roast beef, melted cheese, and Arby's signature horsey sauce on a slider bun.

Wendy's introduced the Baconator Slider in 2018, a smaller version of its iconic Baconator, featuring a beef patty, bacon, American cheese, tomato, lettuce, and mayonnaise on a toasted bun.

Burger King's Jr. Whopper is a popular slider-sized version of its signature Whopper, featuring a beef patty, lettuce, tomato, pickles, onions, and mayonnaise on a toasted bun.

Hardee's Sliders Deluxe is a popular slider-sized sandwich, featuring a beef patty, American cheese, lettuce, tomato, pickles, and mayonnaise on a toasted bun.

Carl's Jr.'s Famous Star Slider is a popular slider-sized burger, featuring a beef patty, American cheese, lettuce, tomato, pickles, onions, and Thousand Island dressing on a toasted bun.

In-N-Out Burger's Mini Cheeseburger is a popular slider-sized burger, featuring a beef patty, American cheese, lettuce, tomato, and Thousand Island dressing on a toasted bun.

Shake Shack's Little Shack Burger is a popular slider-sized burger, featuring a beef patty, American cheese, lettuce, tomato, and ShackSauce on a toasted bun.

Five Guys' Bacon Cheeseburger Slider is a popular slider-sized burger, featuring a beef patty, bacon, American cheese, lettuce, tomato, pickles, onions, and Five Guys' signature sauce on a toasted bun.

Whataburger's Jr. Whataburger is a popular slider-sized burger, featuring a beef patty, American cheese, lettuce, tomato, pickles, onions, and Whataburger's signature sauce on a toasted bun.

Culver's ButterBurger Slider is a popular slider-sized burger, featuring a beef patty, American cheese, lettuce, tomato, pickles, onions, and Culver's signature ButterBurger sauce on a toasted bun.