Most shopping list apps start empty. Pantry Box starts with your recipes, save the ones you're planning to cook this week, and it automatically combines the ingredients into one shopping list, so you're not manually copying "2 cloves garlic" from three different recipes.
Paste a link and Pantry Box pulls in the details, or type it in yourself.
Pick a few recipes and get one merged list, duplicate ingredients added together automatically.
The "What's In My Fridge?" tool suggests recipes based on ingredients you're trying to use up.
Log in on your phone at the store and see the same list you built on your laptop.