The awesome-nostr from xbol0

"nostr" stands for "Notes and Other Stuff Transmitted by Relays" and is an open protocol for censorship-resistant global networks created by @fiatjaf.

Protocol

nostr - overview and FAQ
NIPs - the "Nostr Implementation Possibilities" describe the protocol in technical detail
nostr, a basic tour - an intro to nostr
Nostr: Solucionando la censura de una vez por todas
UseNostr - A small guide for anyone who wants to learn more about how nostr works and what it can do.
nostr.how - Quick-start to onboard desktop users with Alby & Astral
nostr.guide - A guide to all things nostr
nostr address book - A directory of twitter users accounts and their NOSTR addresses
tinkering with nostr without any client

Relays

Relays are (so far) application agnostic. You can run your own or use any or all of the public instances.

Implementations

NNostr - a C# relay
nostr-rs-relay - a minimalistic relay written in Rust that saves data on SQLite
Relayer Basic - a simple relay based on relayer backed by Postgres
nodestr - a Node.js implementation
sovereign-stack - a tool that helps you deploy nostr relays and create self-hosted (bitcoin-only) Value4Value websites.
expensive relay - a relay that requires payment for registration
me.untethr.nostr-relay - a relay written in Clojure
Minds Nostr Relay - a relay for Minds, an open-source social network
- Minds Engine - Nostr - relevant Minds API code for reading/writing Minds posts using Nostr
NostrPostr Relay - a Kotlin Relay supporting both SQLite and Postgresql
nostrpy - relay, client, and other tooling in python
nostream - a nostr relay written in Typescript backed by PostgreSQL (renamed from nostr-ts-relay)
nostr_relay – a nostr relay written in python, backed by SQLite
søstr – a private nostr relay written in rust, saves all notes from one pubkey and publish them to anyone that requests them
knostr – a nostr relay implemented in Kotlin with support for Postgres and metrics(micrometer).
PyRelay – a python implementation of a nostr relay, using asyncio.
strfry – C++ implementation backed by LMDB with efficient syncing of events using merkle trees
Astro – Elixir based implementation built to be performant and highly distributed.
Nex - A powerful and scalable Nostr relay written in Elixir with Postgres DB.
gnost-relay - nostr relay written in go backed by postgresql database.
nostring - A Nostr relay written in Deno.

Instances

Instances are plenty and their availability may vary but these projects track them:

nostr relay registry - real-time checking of status of some known relays
nostr.info - real-time checking of status of some known relays
nostr.watch - real-time checking of status of some known relays

Clients

Astral - a branle fork with global feed and UI makeover
- astral.ninja
- client.nostr.guide
- Astral on TOR
damus - a twitter-like nostr client for iOS and MacOS
- damus on testflight
more-speech - desktop client for nostr written in Clojure
futr - nostr client desktop app written in Haskell
Minds - open source social network. Supports reading and creating posts using the Nostr protocol
Jester - Chess over nostr
- Jester instance
Sendstr - shared clipboard between devices over nostr
nosbin - pastebin over nostr
noscl - a basic command-line client written in Go
loquaz - a desktop app written in Rust for direct encrypted chat
nostr console - a nostr command line client written in Dart. Binaries available for Windows, Linux, and MacOS
ArcadeCity - Public group chats and P2P services (WIP) over nostr
second exchange - an experiment to work out something of like medium, something of creator economy where users are rewarded for engaging in quality discussion and most importantly engaging in governance-related discussion
scalastr - A barebones nostr client written in scala
Nostros - A nostr mobile client for Android
Nostrify.me - Nostr client built in SvelteKit.
- Nostrify.me - Live instance.
NostrEmitter - Simple E2E encrypted client and EventEmitter object
Lightning.Pub - A nostr daemon for Lightning nodes
shockwallet - A Lightning wallet that uses nostr and lnurl to connect to nodes
coracle - A nostr web client
nostrweb - another nostr web client in vanilla JS
- nostr.ch - live instance
Bija - A desktop client written in python. Currently Linux only
Nosky - A native Android client for Nostr. Still in development
Stackerstan - A decentralised organisation built on Bitcoin and Nostr, implemented as a replicated state machine in Golang
nostr-java - A nostr client API written in java, for generating, signing and publishing events to relays
bolt.fun - A bitcoin lightning makers community that supports reading and creating comments using Nostr
iris - A nostr web client
- iris.to - live instance
- Android app
gossip - A desktop client in rust presented with egui
Attached - Open-Source ReactNative Expo app for Nostr (iOS, Android). Currently under app stores review.
Member - Progressive Web App Client. Works on desktop and mobile.
- member.cash - live instance
dispute - A cross-platform (Linux, Android, iOS, MacOs, Windows and Web) client for NOSTR
Snort - Nostr UI written in react
- snort.social
Hamstr - A twitter-style web client built with Vue.js
- hamstr.to
Nozzle - A Twitter-like native Android client written with Jetpack Compose
electron-nostr - A bare-bones desktop nostr client using electron-react-boilerplate. Goal is to be an easy template for people to experiment with different ideas on decentralized ratings, reputation, and web of trust
Nostrid - Multi-platform client currently offering binaries for Android, Windows, MacOS and Linux.
- Nostrid.Web - Web version running completely on the browser. It can be installed locally as PWA.
nostr-chat-widget-react - A React component that provides a live-chat widget over nostr that can be embedded into any website.
Blockcore Notes - Progressive Web App that can be installed on mobile and desktop, organize following in circles and have both public and private following lists. Dynamic interface for different uses, such as optimized for photograph viewing.
- notes.blockcore.net
Noteon - Yet another nostr client focused on private chat and group chat with a simple, elegant and secure interface.
- nostr.noteon.io
emon - Encrypted DMs over nostr with lightning payments integrated (WIP).
- emon.chat
notebin.org - Nostr UI created with NextJS, support for markdown and code highlighting
Daisy - Mobile client for Android and iOS
- testflight + android builds
Flycat - A 2000s old-school style web client which support blogging on Nostr
Amethyst - An Android client for nostr written in Kotlin
MeShell - Web, iOS and Android blog type client destined to publish articles and researches for independent journalists.
- MeShell.io - Landing page for more information
Disgus - A comment widget like Disqus, but for Nostr.
Tamga - An offline first nostr contact & profile manager for iOS!
nostromat - A Twitter-style Nostr web client, written in Clojurescript/React
- nostrom.at - live instance
blogstack.io - Blogging site for nostr, supports markdown
Votestr - Poll web app with nostr authentication and blind signature unlinkability
gnost-deflate-client CLI nostr client written in go implementing permessage-deflate websocket compression.
algia - A cli application for nostr.
algia-web - A small resource consumption oriented Nostr web client.
Blowater - A desktop Web client focusing on chat with delightful UX.
Written Self hosted blog using nostr long-form content (NIP-23) and it shows only posts by selected authors.
- Demo
Nostr Nests - Nostr Nests is an audio space for chatting, brainstorming, debating, jamming, micro-conferences and more.

Client reviews and/or comparisons

Feature comparison list of Nostr clients

Libraries

nostr-ruby - a Ruby implementation of the nostr protocol
nostr - a Ruby Nostr gem for use by clients
NNostr.Client - a C# Nostr library for use by clients
nostr-tools - a JavaScript client that abstracts the relay management code for use by clients
nostr-relaypool-ts - a TypeScript relay pool library on top of nostr-tools that simplifies handling subscriptions to multiple servers
nostr-react - React Hooks for Nostr
go-nostr - a Go library that implements relay management, plus event encoding and signing utils
nostr_rust - Functional Rust implementation of the nostr protocol
nostr-js - a javascript implementation of the nostr protocol
nostr-rs - a Rust implementation of the nostr protocol
nostr:
- nostr: Rust implementation of Nostr protocol.
- nostr-sdk: High level client library.
- bindings: UniFFI (Kotlin, Swift, Python, Ruby) bindings
relayer - a server framework for writing custom relays
NostrPostr - a Kotlin Nostr library for clients or relays
python-nostr - a python library for making clients
nostr-bot - a Rust library for writing bots
NostrKit - a Swift library for interacting with relays
nostr-relay-inspector - A library that returns useful information about relays based on nostr-js
schorr_snap - A snap plugin for Metamask Flask, supports nostr
nostr-deno - a client library for Deno javascript runtime.
nostr-types - a rust library defining types useful for the nostr protocol
dart-nostr - a Dart library for Flutter
nostr-connect - Nostr Connect SDK for TypeScript is a library that allows you to easily integrate Nostr Connect into your web application
pynostr - a python library for nostr
nostr-php - a PHP library for nostr

Bridges and Gateways

rsslay - fork of the rsslay by @fiatjaf. a bridge that puts RSS feeds into Nostr optimized, more funcionalities and UI improvements. Live at rsslay.nostr.moe
smtp nostr gateway - a bridge that forwards emails to pubkeys as encrypted direct messages
matrix-nostr-bridge a simple Matrix-to-Nostr or Nostr-to-Matrix bridge
Mostr - a bridge between Nostr and the Fediverse (Mastodon, ActivityPub, etc.)

Tools

nostrich.fun - A feature-rich directory of nostr projects. A fork of LightningNetworkStores.com
git-nostr-tools - A cli tool for sending code patches over nostr
nostr-cln-events - A CLN plugin to push clightning node events to nostr
nostr registry - a database of known relays with their uptime and NIP support tables
nostr-fzf - Nostr Directory; a tool for searching usernames and channels
nostr-notify - desktop nostr notifications using libnotify
nostr-launch - a tool for launching a bunch of relays and clients locally for development and testing
nos2x - nostr signer extension - a browser extension for signing events on 3rd party site without sharing your private keys with them
nostr GitHub Action - send events from GitHub Actions
nostrefresh - simple refresh function for nostr web pages
anonroom - anonymous chat room inside nostr
nostril - C cli tool for creating nostr events
nostr-rs-relay-compose - a Docker compose deployment for nostr-rs-relay with SSL support based on Traefik
tostr - a twitter to nostr bot
nostr.guru - a nostr web gateway for viewing events by their ID
nostrandom.netlify.app - generate publish-able Nostr event with random keys
nashboard - a Nostr network dashboard with network statistics, reachable here
nostr army knife - nostr army knife by fiatjaf
joinstr - coinjoin implementation using nostr
ndxstr - nostr's layer 2 indexing nodes, with more advanced querying capability than currently supported by relays
nostrillery - a tool for running performance tests against Nostr relays
nostr-terminal - SSH-like access to your machine via web terminal, powered by Nostr.
nostcat - cat-like nostr client for scripting and debugging written in Rust
nostreq - Nostr relay event request generator
nostr.io - network statistics with last published notes, top 50 publishers, and top 50 followed users
nostr-commander - simple but convenient CLI-based Nostr app for following users, sending DMs, etc.
nostr.directory - searchable database of nostr users and their other social media links.
nostr-tool - Rust CLI tool to generate and publish events
frostr - Create joint nostr identities and require t-of-n signatures to post
nostr.rest - Mine proof of work public keys with user specified prefixes
lnpass - A key manager for Lightning and nostr.
sb.nostr.band - Search bots that you can create and follow to receive new posts matching a keyword right into your feed.
rss.nostr.band - Create custom RSS feeds with posts matching your keywords and consume using your favorite RSS reader.
nostrview - A nostr search engine. Search by content, tags, events or pub keys.
nostr-bulk-dms - A tool that allows you to send DMs over nostr to many recipients in bulk.
nostrify - A Core Lightning plugin that sends events (forwards, connect, disconnect, etc.) to nostr.
nip06-web - a website to generate or restore NIP-06 seed phrases
- nip06.jaonoct.us - by jaonoctus
nip06-cli - a Node.js CLI to generate or restore NIP-06 seed phrases
nostr-broadcast This tool lets you take your events from some relays and broadcast them to another relay. Could be helpful for backing up your notes to a private relay.
nostr-follow-bundler This tool lets you create lists of profiles that other users can then see and follow themselves.
nostr-proxy - Push and get events to your Proxy, get results from multiple Nostr relays.
nostrends - Trending on Nostr, like Twitter trends. Live at nostrends.vercel.app.
homebrew-nostr - Homebrew tap for Nostr software.
heyxynip5 - A CLI helper for converting nostr npub/nsec to their hex format for NIP-05 verification.
http-nostr-publisher - A Cloudflare worker to publish Nostr events to relays through a non-blocking HTTP interface .
blastr - A nostr cloudflare workers proxy relay that publishes to all known relays.
keystr-rs - An application for managing Nostr keys. Written in Rust, with simple UI (Iced).
nostr_simple_publish- Drupal module to publish content to Nostr.
nostr-spam-detection - An experiment in building a machine learning model to label Nostr spam content for filtering and relay rejection.
blogsync - Self-host blog articles from long-form notes e.g. via Caddy server.
NostrFlu - A tool to collect and resend following lists from relays. You can also check badges.
nkcli - A CLI tool for nostr key manage and serve NIP-46.
git-nostr - A tool to enhance git cli with nostr communications. Publish patch content, prs, repo name, issues, etc to nostr relay.

NIP-05 identity services

nostrcheck.me - A NIP-05 ID registration service.
nostrplebs - A NIP-05 ID registration service.
plebs.place - A NIP-05 ID registration service (in portuguese).
nanostr A NIP-05 name server written in Deno.
nostr.industries - A free and open source NIP-05 ID registration service. Run your own.
NIP-05 on LNBits - Sell NIP-05 verification for your domain using LNBits.
younostr.com - A NIP-05 ID registration service (in portuguese).
nostrprotocol.net - A free NIP-05 identifier service.
nostr.ly/easyNostr - NIP-05 ID provider: Use your own domain, or one of ours: nostr.ly, mynostr.io, easyNostr.com. Free (for now).
getalby.com - Lightning wallet with NIP-05 ID registration service.
iris.to — A Nostr client that provides a free NIP-05 ID
bitcoiner.chat - A free NIP-05 ID registration service.
pleroma2nip05 - A Python based service to link pleroma ID's to nostr keys.

Offline signer

keechain - Bitcoin application to transform your offline computer in an AirGap Signing Device (aka Hardware Wallet) with support to NIP-06 and NIP-26.
nostrum - Nostrum it's a mobile app that allows you to sign transactions and messages with your Nostr keys. Nostrum is the reference implementation for a remote signer app (ie. Wallet) of the Nostr Connect protocol.
nostr-signing-device - Signing device for Nostr built on ESP32

Vanity pubkey mining

nostr-pubminer - A simple tool to mine nostr vanity pubkeys
rana - Vanity pubkey miner based on nip13
glasnostr - CLI tool to mine a vanity prefix for your nostr npub
nostrogen - simple web based nostr vanity address generator
nostr-vanity-address-generator - Cross-platform nostr vanity address generator
go-pubmine - Multithreading nostr keypair generator which gives pretty (vanity) public keys. Both cli and web app are available.
key-generator - A simple tool to generate nostr keypair.

Browser extensions

Allow you to sign Nostr events on web-apps without having to give them your keys

Alby - Bitcoin Lightning app with nostr support
Flamingo - Nostr browser extension with a focus on UX
nos2x - Nostr Signer Extension
wen - browser extension for website enhancer with nostr
Blockcore - Multi wallet browser extension with nostr support
Nostore - Nostr Signer Extension for iOS/macOS Safari
nostr-keyx - A NIP-07 browser extension that uses the OS's keychain or YubiKey to protect your private keys.

Community

Outside of nostr itself, you find the community on:

nostr telegram group - a telegram group for nostr protocol discussion
nostr español/spanish telegram group - a spanish telegram group for nostr
nostr reddit - a subreddit for nostr related discussion
nostr discord - a discord server for nostr enthusiasts and developers

Tutorials

Step-by-Step guide to set up a relay on your server (AWS, DigitalOcean, RaspBerry... )
Set up a nostr relay server in under 5 minutes
nostr workshop with super testnet
Nostr Newcomers Most Common Questions and Answers
How to: Run your own nostr relay (nostr-rs-relay, Caddy, no Docker)
How to set up a paid nostr relay

Deprecated

branle - a Twitter-like client that was discontinued but lives on in its fork "Astral".
anigma.io - has known xss attack vulnerabilities, which can put private key at risk, or risk signing events you may not want to send.
nvote - it does server side processing, and even private key is handled server side, and as such is deprecated for normal use.
alphaama.com - is under maintenance as of late 2022.
rsslay - a bridge that puts RSS feeds into Nostr