What is Nostr Nostr stands for Notes and Other Stuff Transmitted by Relays.Nostr has grown from 50 active users a year ago to 300,000 today.
Nostr is not an app or service that you sign up for, it's a permissionless open standard like TCP/IP and HTTP. Anyone can build on it without asking for permission from anyone. There is no one in control.
Nostr is designed for simplicity and enables people to participate in a decentralized social network. It can not only replace twitter/facebook/instagram/spotify/etc but can also replace companies that provide infomation exchange services.