Postiz vs Buffer

Self-host swap-in for Buffer. · Self-host Buffer · Postiz on os-alt

Postiz is one of the open-source self-host replacements for Buffer — license AGPL-3.0, 30min docker-compose (Next.js + Postgres + Redis + workers) to stand up, and $10/mo vps for the stack; oauth credentials per platform are free but you register apps yourself. Compare against Buffer's Free tier 3 channels; Essentials $6/channel/mo; Team $12/channel/mo below.

	Postizopen-source	Bufferpaid SaaS
Category	Social media scheduling + analytics	Social media scheduling + analytics
License / pricing	`AGPL-3.0`	Free tier 3 channels; Essentials $6/channel/mo; Team $12/channel/mo
Starting price	$0 self-host	$6/user/mo
GitHub	gitroomhq/postiz-app ★ 30.3k · last commit todayalive	closed source
Setup time	30min docker-compose (Next.js + Postgres + Redis + workers)	SaaS — sign up + bill
Monthly cost	$10/mo VPS for the stack; OAuth credentials per platform are free but you register apps yourself.	from $6/user/mo (Free tier 3 channels; Essentials $6/channel/mo; Team $12/channel/mo)

Switching from Buffer to Postiz

Use the official compose at docs.postiz.com. There's no Buffer importer — recreate the connected channels (you re-authorize each platform via OAuth in Postiz admin). Existing scheduled posts in Buffer don't transfer; export your Buffer queue as CSV and bulk-create in Postiz via its API. Postiz supports the same channel set as Buffer plus Mastodon/Bluesky out of the box.

Good fit for: 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.

Other open-source self-host alternatives to Buffer

Mixpost
MIT20min docker run (Laravel + MySQL + Redis)$5-10/mo VPS; Pro license is one-time ~$200, no recurring.
Mastodon Scheduled Posts (built-in)
AGPL-3.00min if you already run MastodonFree — uses your existing Mastodon instance.

In a terminal? npx os-alt buffer prints Buffer's self-host options — how the CLI works →

FAQ

Is Postiz a free alternative to Buffer?

Yes — Postiz is open source under AGPL-3.0. Self-host cost: $10/mo VPS for the stack; OAuth credentials per platform are free but you register apps yourself.. Buffer starts at $6/user/mo (Free tier 3 channels; Essentials $6/channel/mo; Team $12/channel/mo).

How long does Postiz take to set up vs Buffer?

Self-hosting Postiz: 30min docker-compose (Next.js + Postgres + Redis + workers). Buffer is a hosted SaaS — sign up and you're in.

What is Postiz good at, and what is it weak at?

Good fit for: 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..