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Dev tools · March 8, 2018

Moleculer

Fast & modern microservices framework for Node.js.

Moleculer launched on March 8, 2018 with 92 votes, #435 of 2,954 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 8 years on.

What it does

Moleculer is an open-source fast & flexible framework, licensed under MIT. It contains most of all important microservices features (service registry, auto-discovery, load balancing, circuit-breaker…etc).

Moleculer is a microservices framework for Node.js and TypeScript with built-in service discovery, load balancing, circuit breakers, distributed tracing and an event bus — no Kubernetes, Consul or ser

Service discovery, load balancing, circuit breakers, distributed tracing and a built-in event bus — without Kubernetes, Consul, Istio or a service mesh. Start as a modular monolith, split into distributed services later without changing your service code. Service registry, service discovery, load balancing and health checks are built into the framework — not into Consul, etcd or a Kubernetes control plane. Read about discovery. Circuit breaker, bulkhead, retry, timeout and fallback are part of the framework, not bolted on with extra libraries. See fault tolerance. The same service code runs over TCP, NATS, Redis, Kafka, MQTT or AMQP. Swap the message broker without touching a service.…from moleculer.services

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