zktool是专为区块链服务的工具网站，包含iuo抢先swap、airdrop等专用工具，也包含并罗列了区块链常用工具，例如各链的浏览器。Zktool is a tool website dedicated to blockchain services, including iuo preemptive swap, airdrop and other special tools, as well as common blockchain tools, such as browsers of each chain.