message-db/message-db

Health v2 · maintenance only

Adoption not part of the score

1652 stars · 64 forks observed · 2026-08-28

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

Message DB is a fully-featured event store and message store implemented in PostgreSQL, supporting Pub/Sub, event sourcing, streams, categories, and consumer groups. It provides a minimalist alternative to tools like Event Store or Kafka, installable via Ruby gem, NPM module, or shell scripts.

Use cases

• implement event sourcing on postgres
• build event-driven microservices
• pub/sub messaging without kafka
• store and stream json events
• consumer group processing of message streams

When to choose

• you want event sourcing backed by plain Postgres with simple hosting
• you need pub/sub and consumer groups without running Kafka or a separate event store
• you want language-agnostic clients since the store is just Postgres

When to avoid

• you need very high-throughput streaming beyond what Postgres can handle
• you require rich Kafka-style partitioning and ecosystem tooling
• you want a managed event store service

Facets

library · maturity active

message-queue database serialization databases microservices backend developer-tools self-hosted event-store event-sourcing pub-sub postgres event-driven consumer-groups eventide messaging linux macos docker

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markdown · JSON · MCP: product_card(name="message-db/message-db")