Can I buy a house with no money down?
Yes, if you qualify for a VA loan (eligible service members and veterans) or a USDA loan (eligible rural areas and incomes), or a down payment assistance program. You will still usually need money for closing costs and earnest money. ListingCraft for Buyers shows that cash to close for each offer.
Seller credits and lender credits can reduce what you bring to closing, and some assistance programs cover closing costs too. Ask lenders which programs you qualify for.