OKX (formerly OKCoin) is one of the world's largest cryptocurrency exchanges by trading volume. Founded by Star Xu in 2013 in China, the company has grown into a global platform serving millions of users across more than 100 countries. OKCoin rebranded to OKX in 2022 to reflect its expansion beyond being a simple "coin" exchange into a comprehensive Web3 platform.

OKX offers spot trading, derivatives (futures, perpetual swaps, options), margin trading, and an earn platform across hundreds of cryptocurrency trading pairs. The exchange is known for its deep liquidity, competitive fees, and advanced trading tools. OKX consistently ranks among the top 3 exchanges globally by derivatives trading volume.

Beyond its centralized exchange, OKX has built a Web3 ecosystem including the OKX Wallet (a multi-chain self-custody wallet supporting 80+ blockchains), an NFT marketplace, and a DEX aggregator. The OKX Wallet competes directly with MetaMask as a browser extension and mobile wallet for interacting with decentralized applications.

OKX has invested heavily in global brand recognition through sports sponsorships, including partnerships with Manchester City FC and Formula 1. The company relocated its headquarters from China to the Seychelles following China's 2021 crypto ban, and maintains offices globally.