Nexchange!

exchange bitcoin with other peers for fiat or other cryptos.

ShapeShift.io is an instant exchange for cryptocurrencies. Buy or sell Bitcoin, Litecoin and other coins easily without an account. API available.

Changelly is an instant cryptocurrency exchange with clear interface that provides the best prices for Bitcoin, Litecoin, Ethereum and other altcoins.

CoinSwitch is the first cryptocurrency and altcoin exchange aggregator. It has integrated many leading exchanges like Bittrex, ShapeShift, Changelly so that people get best rates at one place.

Coinwale is an instant cryptocurrency exchange with clear interface that provides the best prices for Bitcoin, Litecoin, Ethereum and more.

Poloniex is a US-based digital asset exchange platform focusing on security.