NodeBB

NodeBB is a self‑hosted forum platform built on Node.js that supports MongoDB, Redis, or PostgreSQL as its data store. It uses web sockets to provide real‑time interactions and notifications, and offers a RESTful API for reading and writing data. The core includes basic bulletin‑board features such as categorical hierarchies, local user accounts, and asynchronous messaging, while additional capabilities are added through third‑party plugins.

The software is designed for developers and administrators who want a modern, mobile‑responsive discussion system that can be customized via a flexible theming engine. Themes extend base templates and can be styled with SCSS or CSS, and the default “Harmony” theme works out of the box without coding. NodeBB’s architecture allows scaling through clustering when Redis is configured, and it can be deployed directly, via Docker, or behind an nginx proxy.

NodeBB is released under the GPL‑3.0 license, is free to use without subscription, and is maintained as a stable, open‑source project. It targets communities, hobbyists, and organizations that need a controllable, extensible forum solution they can host and modify themselves.