kbin

A reddit-like content aggregator and micro-blogging platform for the fediverse.

github.com/ernestwisniewski/kbin
kbin homepage screenshot

About kbin

kbin is a modular, decentralized content aggregator and microblogging platform for the Fediverse network. It uses ActivityPub to communicate with other services, including Mastodon, Lemmy, Pleroma and PeerTube.

The project is described as a very early beta, with many features broken or in active development, including federation. Self-hosting requires PHP 8.2 or higher, PostgreSQL and a web server such as NGINX, Apache or Caddy, with Docker files provided.

Key features

  • Content aggregation and microblogging on the Fediverse network
  • Interoperates with Mastodon, Lemmy, Pleroma, PeerTube via ActivityPub
  • Self-hostable with Docker Compose configuration files
  • Requires PHP 8.2 or higher and PostgreSQL
  • Supports optional Redis, Mercure and RabbitMQ components
  • Available in English, Polish, French and other languages
Best for: People who want to self-host a community-run Fediverse instance for aggregated posts and microblogging.
Good for
  • Open source under AGPL-3.0 license
  • Interoperates with multiple ActivityPub services
  • Translated into many languages
Watch out for
  • Very early beta with many features broken or in development
  • Federation noted as broken or in active development
  • Requires technical setup with PHP, PostgreSQL and a web server

kbin at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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kbin FAQ

What is needed to run kbin?
PHP 8.2 or higher, GD or Imagemagick PHP extension, NGINX, Apache or Caddy, and PostgreSQL, with Redis, Mercure and RabbitMQ as optional components.
Is kbin a finished product?
No. The source notes it is a very early beta version with many features broken or in active development, including federation.
Under what license is kbin released?
AGPL-3.0 license.
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