Mixpost vs Postiz
Self-host pick — both replace Buffer (Social media scheduling + analytics).
Both Mixpost and Postiz self-host as a replacement for Buffer (Social media scheduling + analytics). Pick Mixpost if you want a MIT-licensed codebase (MIT); pick Postiz for AGPL (AGPL-3.0). Both run in roughly the same cost bracket — $5-10/mo vps; pro license is one-time ~$200, no recurring vs $10/mo vps for the stack; oauth credentials per platform are free but you register apps yourself.
| Mixpostopen-source | Postizopen-source | |
|---|---|---|
| License | MIT | AGPL-3.0 |
| Setup time | 20min docker run (Laravel + MySQL + Redis) | 30min docker-compose (Next.js + Postgres + Redis + workers) |
| Monthly cost | $5-10/mo VPS; Pro license is one-time ~$200, no recurring. | $10/mo VPS for the stack; OAuth credentials per platform are free but you register apps yourself. |
| GitHub | inovector/MixPost | gitroomhq/postiz-app |
| Replaces | Buffer | Buffer |
Good fit for
Mixpost
Solo creators and small businesses who prefer a one-time license to ConvertKit/Buffer's recurring channel-based pricing.
Weak at:PHP/Laravel stack means more moving parts (queues, supervisor) than Postiz; Pro features behind paid license.
Postiz
Creators and small agencies who want a Buffer-shaped UI (calendar + composer + queue) under their own domain.
Weak at:OAuth approval friction — you need to register developer apps on each platform (Meta, X, LinkedIn) which can take a week for Instagram review.
In a terminal? npx -y github:SolvoHQ/os-alt-cli buffer prints Buffer's self-host options including both —
how the CLI works →
FAQ
Which is easier to self-host, Mixpost or Postiz?
Mixpost: 20min docker run (Laravel + MySQL + Redis). Postiz: 30min docker-compose (Next.js + Postgres + Redis + workers).
What does each cost to run?
Mixpost: $5-10/mo VPS; Pro license is one-time ~$200, no recurring.. Postiz: $10/mo VPS for the stack; OAuth credentials per platform are free but you register apps yourself.. Both projects are free and open source.
Do Mixpost and Postiz replace the same SaaS?
Yes — both are open-source alternatives to Buffer.