nanomsg/nng

Health v2 · maintenance only

Adoption not part of the score

4660 stars · 558 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

NNG (nanomsg-next-generation) is a lightweight, broker-less messaging library in C implementing scalability protocols like pub/sub, request/reply, and pipeline. It provides a simple asynchronous API with TLS and ZeroTier transports for reliable, secure messaging.

Use cases

• implement publish/subscribe messaging between services
• build request/reply RPC without a message broker
• send messages over IPC or TCP between processes
• add secure TLS-encrypted messaging to a C application
• replace ZeroMQ with a lighter messaging library
• implement service discovery and pipeline patterns

When to choose

• you need brokerless messaging in C or C-compatible projects
• you want simple pub/sub or req/rep without running a broker
• you need a small, embeddable messaging library with TLS support
• you want mature, production-hardened scalability protocols

When to avoid

• you need a full-featured message broker with queues and persistence
• you need Kafka/RabbitMQ-style durable messaging at scale
• your stack is higher-level and a native client for an existing broker is easier
• you need the legacy nanomsg API rather than NNG

Facets

library · maturity stable

message-queue rpc networking concurrency security microservices networking developer-tools windows bsd cross-platform c nanomsg zeromq-alternative scalability-protocols brokerless pubsub request-reply tls ipc c-library messaging linux macos

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