CoinJoin requires no account, no password, no personal information. It is the only open-source bitcoin mixing protocol to guarantee untraceability. We don't hold your data - nobody does.
You can use your Bitcoin wallet seed with most other Bitcoin client software. Should CoinJoin.io be unavailable, your money still belongs to you and you can manage it using other wallets.
CoinJoin allows you to manage your own money without proving your identity or justifying your existence. CoinJoin.io separates your identity from your bitcoins.