Postiz Review (2026)
Open-source AI scheduler — self-host free or use the cloud.
Free (self-hosted) · Free plan: yes · 15 platforms
What is Postiz?
Postiz is the leading open-source social media scheduler — a full alternative to Buffer or Hootsuite whose source code lives on GitHub with tens of thousands of stars. Self-host it with Docker and you get unlimited accounts and scheduling, free forever, with your data on your own infrastructure. A managed cloud version exists for those who'd rather not run servers.
Coverage is remarkably broad: all major networks plus Reddit, Discord, Slack, Telegram, Mastodon, Bluesky, and Threads. AI features generate posts and images, teams can collaborate, and an API plus MCP support makes it a favorite publishing backend for AI-agent workflows. For developers, it's the obvious choice.
Key features
- Open source and self-hostable. MIT-adjacent licensing, Docker deployment, unlimited accounts on your own server.
- 15+ platforms. Majors plus Reddit, Discord, Slack, Telegram, Mastodon, Bluesky, and Threads.
- AI content assistant. Generates post copy and images inside the composer.
- API and agent-friendly. Public API and MCP support for programmatic and AI-agent publishing.
- Team collaboration. Multi-user workspaces with scheduling queues and marketplace features.
Supported platforms
Pricing
Self-hosted: free, unlimited. Cloud plans start around $29/month for those who don't want to manage hosting.
Best for
Developers, technical teams, and privacy-conscious users who want full control — or unlimited scheduling for free.
Pros & cons
Pros
- Free and unlimited when self-hosted
- Widest platform list in this directory
- Active open-source development
- API/MCP-ready for agent workflows
Cons
- Self-hosting requires Docker comfort
- Cloud pricing is unremarkable vs. rivals
- Some platform integrations less battle-tested
Postiz alternatives
FAQ
Is Postiz really free?
Yes — the self-hosted version is open source and free with unlimited accounts and posts; you just provide the server (a small VPS running Docker works). The managed cloud version starts around $29/month.
How do I self-host Postiz?
Postiz ships Docker images and compose files; a basic deployment on any VPS takes under an hour following the official docs. You'll create developer apps on each social platform to obtain API keys.
What platforms does Postiz support?
X, Instagram, Facebook, LinkedIn, TikTok, Pinterest, YouTube, Threads, Bluesky, Mastodon, Reddit, Telegram, Discord, and Slack — the broadest list of any tool in this directory.
Can AI agents post through Postiz?
Yes — Postiz exposes a public API and supports MCP, making it a popular publishing backend for autonomous agent and n8n-style automation workflows.