I had some Ethereum sitting around and wanted to convert it to Bitcoin without dealing with a full exchange. Paybis has a simple swap feature. I went to https://paybis.com/swap-eth-to-btc/, entered how much ETH I wanted to swap, provided my Bitcoin wallet address, and sent the ETH to the address they gave me. Within a few minutes, the BTC was in my wallet. The exchange rate was competitive, and the fees were clearly shown before I confirmed. You can also use their free Paybis wallet to receive the BTC. If you need to swap crypto quickly without leaving your couch, this is the easiest method I've tried.