# Nostrord

> Nostrord is a free, open-source NIP-29 client for decentralized group chat on Nostr. It brings a Discord-style experience to a censorship-resistant protocol, with relay-enforced moderation, cryptographic identity, and no sign-up required.

## What is Nostrord?

Nostrord is a Kotlin Multiplatform (KMP) group messaging client built on NIP-29, the Nostr specification for relay-based groups. Users create or join groups hosted on any NIP-29-compatible relay, with membership, moderation, and permissions enforced by the relay itself rather than a central server.

Your account is a cryptographic keypair you own. There is no phone number, email, or username tied to a central service. The same identity works across every Nostr app.

## Key Features

- NIP-29 relay-based groups (create, join, manage)
- Chat, replies, and threaded conversations
- Moderation: admin roles, member management, message deletion
- Relay-enforced membership and permissions
- Multi-platform: Android, iOS, Desktop (JVM), Web (JS and WebAssembly)
- Cryptographic identity via Nostr keys (no sign-up)
- NIP-07 browser extension support for signing
- NIP-46 remote signer (bunker) support
- Open source under the Unlicense

## How It Works

1. User opens Nostrord (web, desktop, or mobile) and authenticates with a Nostr keypair
2. User connects to one or more NIP-29-compatible relays
3. User creates a new group on a relay or joins an existing one via invite
4. The relay enforces who can join, post, and moderate
5. Messages are signed with the user's private key and published to the relay
6. Other members receive messages in real time via WebSocket subscriptions

## Architecture

Nostrord is built with Kotlin Multiplatform and Compose Multiplatform. Shared business logic in commonMain runs on all platforms; platform-specific code handles crypto, secure storage, and browser integration.

- commonMain: shared UI (Compose), NIP implementations, networking
- androidMain: EncryptedSharedPreferences, Android crypto
- jvmMain: Desktop crypto (secp256k1-kmp), JVM Preferences
- jsMain: NIP-07 browser extension, JS Ktor client
- wasmJsMain: WebAssembly target

## Supported NIPs

- NIP-01: Basic protocol (event signing, subscriptions)
- NIP-04: Encrypted direct messages
- NIP-07: Browser signer extension API
- NIP-19: bech32 entities (npub, nsec, note, nevent)
- NIP-29: Relay-based groups (core protocol)
- NIP-42: Authentication to relays
- NIP-44: Versioned encryption
- NIP-46: Remote signer (bunker)
- NIP-65: Relay list metadata

## Platform Support

- Web: https://web.nostrord.com/
- Android: APK builds, Google Play (planned)
- Desktop: Windows, macOS, Linux (JVM)
- iOS: in development

## Funding

Nostrord is supported by an OpenSats grant (sixteenth wave of Nostr grants, 2026).
https://opensats.org/blog/sixteenth-wave-of-nostr-grants

## Source Code

Nostrord is open source under the Unlicense:
https://github.com/nostrord/nostrord

## Links

- Website: https://nostrord.com
- Web app: https://web.nostrord.com/
- GitHub: https://github.com/nostrord/nostrord
- Join group: https://web.nostrord.com/?relay=groups.0xchat.com&group=nostrord
- OpenSats grant announcement: https://nostrord.com/blog/nostrord-opensats-grant.html

## Contact

Developer: Anderson Juhasc