slact/nchan

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

3065 stars · 291 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Nchan is a scalable pub/sub message server and proxy implemented as an Nginx module, supporting Websocket, EventSource (SSE), long-polling, and other HTTP-based subscribers. It buffers messages in shared memory, on disk, or via Redis, and scales horizontally across Nginx servers using Redis Cluster.

Use cases

• push real-time updates to browsers over websockets or SSE
• build a pub/sub message broker behind nginx
• fan out messages to thousands of live subscribers
• add long-polling event delivery to an existing HTTP app
• scale realtime messaging across multiple servers with redis
• proxy live event streams between backend services and clients

When to choose

• you need high-performance realtime pub/sub integrated with Nginx
• you want to support Websocket, SSE, and long-polling clients from one server
• you need horizontal scaling and high availability via Redis Cluster
• you want an HTTP-native RESTful publish API

When to avoid

• you need a general-purpose message queue like Kafka or RabbitMQ with rich routing semantics
• you don't run Nginx and don't want to compile a C module into it
• you need complex message transformation or consumer-group processing
• you want a managed cloud service rather than self-hosted infrastructure

Facets

service · maturity stable

message-queue websocket http-server caching middleware web-development backend microservices self-hosted nginx-module pubsub server-sent-events long-polling redis real-time-messaging real-time messaging linux web-server docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="slact/nchan")