NATS JavaScript client
Some data may be outdated — see provenance labels.
JavaScript client for Node.js, Bun, Deno and browser for NATS, the cloud native messaging system observed · 2026-09-22
Health v2 · maintenance only
72/100
- Activity 85
- Release rhythm 63
- Longevity 60
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 74
- age_days: 840
- days_rel: 165
- days_push: 91
- n_releases_24m: 8
Adoption not part of the score
442 stars · 48 forks observed · 2026-09-22
What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-19, confidence 0.98
NATS is an open‑source, cloud‑native messaging system that provides ultra‑low latency pub/sub, request/reply, and streaming capabilities. It runs as a single binary server and offers client libraries for dozens of languages.
Use cases
- publish/subscribe messaging between microservices
- request‑reply communication for distributed applications
- queueing background jobs with JetStream persistence
- real‑time data streaming to edge devices
- building resilient event‑driven architectures
- scaling a message bus across cloud and on‑premise environments
When to choose
- You need sub‑millisecond latency and millions of messages per second
- You want a lightweight server with minimal resource footprint
- You require multi‑language client support and easy deployment on Kubernetes or edge devices
- You prefer a cloud‑native solution that integrates with CNCF ecosystems
When to avoid
- You need advanced stream processing or complex query capabilities like those in Kafka
- You require built‑in message transformation or heavy schema enforcement
- Your use case depends on a broker with built‑in exactly‑once semantics beyond JetStream
Facets
service · maturity active
message-queue microservices cloud-computing windows cloud self-hosted high-performance lightweight pubsub request-reply jetstream streaming edge cncf linux macos docker kubernetes
6 sources
- readme: https://github.com/nats-io/nats.js · fetched 2026-09-22 · 53fde7136f05
- homepage: https://nats.io · fetched 2026-08-29 · 5e473e44be25
- homepage: https://www.nats.io · fetched 2026-10-05 · a82ffc607751
- site_page: https://nats.io/about · fetched 2026-10-05 · 5a315e434f18
- site_page: https://docs.nats.io · fetched 2026-10-05 · 4787c0141dc2
- site_page: https://docs.nats.io/running-a-nats-service/introduction/installation · fetched 2026-10-05 · 99c366b7677a
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| nats-io/nats.js | main | 72 |
| nats-io/nats-server | main | 96 |
| nats-io/nats.go | sdk | 96 |
| nats-io/nats.node | backend | 10 |
| nats-io/nats.ws | plugin | 10 |
| nats-io/nats.deno | backend | 52 |
| nats-io/nats.ts | backend | 10 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem