What It Is
Postiz is an open-source alternative to Buffer, Hypefury, and Twitter Hunter. Multi-platform post scheduling with AI assistance, team collaboration (comments, sharing, co-scheduling), analytics, a post marketplace, and a public API for automation hooks (N8N, Make.com, Zapier). AGPL-3.0, 28.9k stars, 5.2k forks.
Language
TypeScript monorepo, pnpm workspaces.
| Layer | Tech |
|---|---|
| Frontend | Next.js (React) |
| Backend | NestJS |
| Database | Prisma + PostgreSQL |
| Workflows | Temporal |
| Resend |
Install
Self-hosted via Docker Compose is the official path:
git clone https://github.com/gitroomhq/postiz-app.git
cd postiz-app
docker compose up -d
SaaS cloud version available with feature parity to self-hosted.
Supported Networks
Instagram, YouTube, LinkedIn, TikTok, X (Twitter), Facebook, Discord, Slack, Threads, Bluesky, Mastodon, Reddit, Pinterest, Dribbble, plus additions in the pipeline.
Value
Most "open-source Buffer" projects die at 2k stars with broken OAuth on half the platforms. Postiz at 28.9k is in different territory: real product, real team, real SaaS business funding the OSS side. Good candidate for internal content tooling or a Buffer replacement with agent hooks.