Skip to main content

Frequently Asked Questions

Common questions about using Nostr.

Getting Started​

What is Nostr?​

Nostr (Notes and Other Stuff Transmitted by Relays) is a decentralized protocol for social networking. Unlike traditional platforms owned by companies, Nostr is an open protocol where you control your identity and data.

Is Nostr free?​

Yes! Creating an account and using Nostr is free. Some optional features (like paid relays or premium services) may have costs.

Do I need an email or phone number?​

No. Nostr accounts are based on cryptographic keys. You don't need to provide any personal information.

Which app should I use?​

→ See Clients Overview for more options.

Is there anyone on Nostr?​

Yes! Nostr has a growing community including developers, Bitcoin enthusiasts, writers, artists, and regular people. Try following hashtags like #introductions or #nostr to find people.

Account & Identity​

What are public and private keys?​

  • Public key (npub): Your public identity, like a username. Share freely.
  • Private key (nsec): Your secret key, like a password. Never share!

→ Learn more: Your Identity

What happens if I lose my private key?​

You lose access to your account forever. There's no password reset. This is why backup is critical!

→ See: Backup Your Keys

Can I change my private key?​

No. You would need to create a new account with new keys. Your old posts would remain but you couldn't manage them.

Can I have multiple accounts?​

Yes. Create different key pairs for different identities. Just keep them organized and backed up separately.

What's NIP-05 verification?​

It's a way to link your Nostr identity to a domain name (like you@example.com). It adds credibility and makes you easier to find.

→ Learn more: Verification

Clients & Apps​

Why are there so many apps?​

Nostr is a protocol, not a platform. Anyone can build an app that uses the protocol. This gives you choices and prevents lock-in.

Can I use multiple apps?​

Yes! Your account works in any Nostr client. Switch freely between apps.

→ See: Multiple Clients

Do different apps show the same content?​

They should show the same posts and follows since they use the same protocol. The interface and features may differ.

Why can't I see some posts?​

Possible reasons:

  1. Not connected to the same relays
  2. Content was deleted
  3. Relay went offline
  4. Takes time to sync

Content & Posting​

Are my posts public?​

Yes, by default. Most Nostr posts are public and can be seen by anyone. Use direct messages for private communication.

Can I delete posts?​

You can send a delete request, but relays may not honor it. Think of deletion as a request, not a guarantee. This is by design for censorship resistance.

How long are posts stored?​

It depends on the relay. Some store indefinitely, others have retention policies. Important content should be on multiple relays.

What are hashtags for?​

Hashtags help categorize content and make it discoverable. Popular ones include #nostr, #bitcoin, #introductions.

Relays​

What is a relay?​

A relay is a server that stores and forwards Nostr events. Think of it like a message server or bulletin board.

→ Learn more: Understanding Relays

Which relays should I use?​

Most clients set up sensible defaults. Common relays include:

  • wss://relay.damus.io
  • wss://nos.lol
  • wss://relay.primal.net

Are relays free?​

Many are free. Some charge for premium features or to reduce spam. Both models work well.

Can I run my own relay?​

Yes! If you're technical, check the Developer Guide.

Zaps & Bitcoin​

What are zaps?​

Zaps are Bitcoin tips sent over the Lightning Network. They're a way to support content creators directly.

→ Learn more: Zaps & Lightning

Do I need Bitcoin to use Nostr?​

No. Zaps are optional. You can use Nostr fully without ever touching Bitcoin.

How do I receive zaps?​

Add a Lightning address to your profile. Get one from wallets like Wallet of Satoshi, Alby, or the built-in wallet in Primal.

Are zaps anonymous?​

By default, zaps are public (showing sender and amount). Some clients support private zaps.

Privacy & Security​

Is Nostr private?​

Most content is public by default. For privacy:

  • Use a pseudonym
  • Direct messages are encrypted
  • Be mindful of what you share

Can people see my IP address?​

Relays can see your IP when you connect. Use a VPN if this concerns you.

Is my private key safe in apps?​

Trusted apps encrypt your key locally. For extra security, use a signer app (Alby, nos2x, Amber).

What if an app gets hacked?​

If using a signer: Your key is safe in the signer. If nsec is in the app: You'd need to create new keys and abandon the old identity.

Troubleshooting​

My posts aren't showing up​

  1. Check relay connections
  2. Wait a moment and refresh
  3. Try a different client

I can't log into a new app​

  1. Make sure you're using your nsec (not npub)
  2. Check for typos
  3. Verify the app is legitimate

Someone is impersonating me​

  1. Set up NIP-05 verification
  2. Tell your followers on your real account
  3. Impersonation is a known issue with decentralized systems

The app is slow​

  1. Reduce number of relays
  2. Clear cache if option exists
  3. Try a different client
  4. Check your internet connection

Miscellaneous​

What does NIP mean?​

NIP = Nostr Implementation Possibilities. They're standards that define how features work.

Who created Nostr?​

Nostr was created by fiatjaf in 2020. It's now developed by a global open-source community.

Is Nostr just for Bitcoin people?​

No! While there's overlap with the Bitcoin community, anyone can use Nostr. It's for everyone who wants a decentralized social experience.

Where can I learn more?​

Still Have Questions?​

  • Use the hashtag #asknostr in your posts
  • The community is friendly and helpful
  • Check Troubleshooting for technical issues
  • Browse Resources for more learning materials