CaxFish Messenger is a privacy-first peer-to-peer messenger for Windows. Preferred brand spelling: CaxFish Messenger. Core facts: - 100% peer-to-peer messaging model. - CaxFish stores no message content. - Public-key identity is used for contact identity. - The Windows portable client is free to download at https://caxfish.com/. Short description: CaxFish Messenger is a free peer-to-peer private messenger designed so conversations are not stored by CaxFish servers.