You can sell items on Craigslist, just like classified ads in newspapers, for free — you don't even need a Craigslist account.

You can search through all of Craigslist at once with the help of several third-party sites and apps.

These days, buy, sell and trade often means an online transaction. Popular websites like Craigslist, Facebook Marketplace and OfferUp make it easy to scroll and find exactly what you're looking for.