Coolr is a simple, open-source, ephemeral group chat built on Nostr.

• Connect using your favorite Nostr extension or go anon 👤
• Join or create public channels using hashtags (e.g. #21m).
• Supports Bitchat geohash channels! No special bc_ needed.
• All messages are ephemeral (temporary), you only see messages if you are connected.
• Open source: GitHub
• Use /help for a list of commands.

If you want to login with your nostr key you need to install a Nostr browser extension like Alby or Nos2x.