Implémentations de relais Nostr

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Un relais Nostr est le logiciel serveur qui stocke les événements et les sert aux clients. Parce que le protocole est ouvert, des dizaines d'implémentations indépendantes existent dans de nombreux langages, et n'importe qui peut en auto-héberger un — exécuter votre propre relais est une couche de décentralisation de plus. Cette référence compare 23 implémentations et frameworks de relais open source par langage, moteur de stockage et licence, des relais à haut débit comme strfry (C++/LMDB) et rnostr (Rust/LMDB) aux relais souverains personnels comme HAVEN et Chorus et aux frameworks (khatru, relayer) sur lesquels vous construisez le vôtre.

strfry et rnostr mènent sur le débit brut ; khatru et relayer sont les frameworks Go sur lesquels la plupart des relais personnalisés sont construits ; HAVEN, Chorus, Citrine et Servus ciblent un usage personnel et auto-souverain. Tous sont open source — choisissez selon le langage et le moteur de stockage que vous savez exploiter.

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Implémentation	Langage	Stockage	Licence	Catégorie	Ce que c'est
strfry	C++	LMDB	GPL-3.0	Nostr Relay Implementation	High-performance self-contained Nostr relay written in C++ that stores events in LMDB and supports efficient set-reconciliation syncing of events between relays using Merkle trees.
nostr-rs-relay	Rust	SQLite (experimental PostgreSQL)	MIT	Nostr Relay Implementation	Minimalistic Nostr relay written in Rust that persists data in SQLite, with experimental PostgreSQL support.
khatru	Go	Pluggable (via eventstore module, e.g. SQLite)	Unlicense	Nostr Relay Framework	Go framework for building custom Nostr relays with pluggable storage, authentication, event-filtering policies and HTTP endpoints.
nostream	TypeScript	PostgreSQL (Redis for caching)	MIT	Nostr Relay Implementation	Nostr relay written in TypeScript backed by PostgreSQL (with Redis), supporting many NIPs including encrypted messaging, proof-of-work and payments (renamed from nostr-ts-relay).
relayer	Go	Pluggable (reference examples include PostgreSQL)	Unlicense	Nostr Relay Framework	Go framework for building custom Nostr relay servers, including a reference relay implementation in its examples folder.
rnostr	Rust	LMDB	MIT	Nostr Relay Implementation	High-performance, scalable Nostr relay written in Rust using LMDB for event storage (architecture inspired by strfry), with configurable extensions for authentication, rate limiting and full-text search.
HAVEN	Go	—	MIT	Nostr Relay Implementation	Personal sovereign relay written in Go that combines four relays in one (private, chat, inbox, outbox) plus a built-in Blossom media server, with web-of-trust protection.
Chorus	Rust	—	MIT	Nostr Relay Implementation	Nostr relay written in Rust that can run as a personal relay, open relay or Blossom server, with features such as IP banning, rate limiting and moderation tools.
Citrine	Kotlin	Local on-device database	MIT	Nostr Relay Implementation	Android application written in Kotlin that runs a Nostr relay on the phone, letting local clients send and receive events with import/export of stored data.
nostr-relay-nestjs	TypeScript	PostgreSQL	MIT	Nostr Relay Implementation	High-performance Nostr relay built with the NestJS framework and PostgreSQL, powered by the nostr-relay library.
grain	Go	nostrdb (LMDB-based)	MIT	Nostr Relay Implementation	Configurable multipurpose Nostr relay written in Go (Go Relay Architecture for Implementing Nostr) with content filtering and hot-reload configuration.
netstr	C#	PostgreSQL	MIT	Nostr Relay Implementation	Nostr relay written in C# backed by PostgreSQL, with high test coverage and features such as proof-of-work support and search.
NNostr	C#	PostgreSQL	MIT	Nostr Relay Implementation	C# implementation of both a Nostr relay server and client library, with Docker deployment and optional payment features via BTCPay Server.
WoT Relay	Go	—	MIT	Nostr Relay Implementation	Nostr relay written in Go (built on the khatru framework) that archives notes from users in your web of trust — people you follow and the people they follow.
sw2	Go	—	MIT	Nostr Relay Implementation	Nostr relay written in Go that displays and accepts notes only from whitelisted pubkeys, intended for private use, small communities, knowledge bases or dropboxes.
Servus	Rust	Plain-text files (database-free)	GPL-3.0	Nostr Relay Implementation	Single-executable, database-free CMS/blogging engine written in Rust that also acts as a personal Nostr relay, Blossom server and NIP-05 identity provider.
Immortal	Rust	—	MIT	Nostr Relay Implementation	High-performance, configurable Nostr relay written in Rust designed for scale and high-load (paid or community relays).
Shugur	Go	CockroachDB	MIT	Nostr Relay Implementation	Production-grade Nostr relay written in Go that uses CockroachDB for distributed, high-availability storage.
Alienos	Go	—	MIT	Nostr Relay Implementation	Plugin-able, manageable (NIP-86) lightweight self-hosting stack written in Go combining a Nostr relay, Blossom media server and NIP-05 identity, with S3 backups and Tor support.
knostr	Kotlin	—	MIT	Nostr Relay Implementation	Nostr relay implemented in Kotlin using the Micronaut framework, supporting multiple NIPs.
relay29	Go	—	MIT	Nostr Relay Framework	Go library for creating NIP-29 (simple groups) relays, handling group state and moderation; works with khatru, strfry and relayer via wrappers.
Bostr	JavaScript (Node.js)	—	—	Nostr Relay Aggregator/Proxy	Nostr bouncer / relay aggregator proxy written in Node.js, as listed in the awesome-nostr relays directory.
Nosflare	JavaScript	Cloudflare KV	—	Nostr Relay Implementation	Serverless Nostr relay purpose-built for Cloudflare Workers and the Cloudflare KV store, as listed in the awesome-nostr relays directory.

Source : le dépôt GitHub de chaque projet, recoupé avec la liste awesome-nostr (juin 2026). Voir aussi la comparaison des clients Nostr, la référence des NIP, la référence des types d'événements, l'entrée de glossaire des relais, et le catalogue d'auto-hébergement souverain.

Produits, réparations et guides connexes

Dernière révision: 27 juillet 2026.