Postiz is an open-source, AI-powered social media scheduler that posts to over 20 networks (including Bluesky, Threads, Mastodon, Reddit and Warpcast), ships its own MCP server and a real public API, and is fully AGPL-3.0 self-hostable. We rate it 87/100 — the most credible 2026 open-source alternative to Buffer and Hootsuite for tech-savvy creators, agencies and developer marketing teams who want AI workflows without paying enterprise SaaS prices.

What is Postiz?

Postiz launched as an open-source project in September 2024, built by indie hacker Nevo David — the same engineer who previously bootstrapped open-source notification platform Novu past 20,000 GitHub stars. The project sits at github.com/gitroomhq/postiz-app with 29,839 stars, 5,403 forks and 223 open issues, and the team shipped v2.21.7 on April 27, 2026. Unlike Buffer or Hootsuite — which lock advanced features behind $99–$199/month plans — Postiz publishes every line of source under AGPL-3.0, runs on a Next.js + NestJS + Prisma + Temporal stack, and lets you self-host the entire platform on a single Docker host.

The specific problem Postiz solves is the "creator tax": legacy schedulers charge per channel and per seat, then gate developer-friendly features (public API, webhooks, RSS auto-posting, MCP) behind their highest tiers. Postiz inverts that — the public API and webhook automations show up on the entry-level Standard plan, and you can plug Postiz into n8n, Make.com or Zapier with the official n8n-nodes-postiz and @postiz/node SDKs.

Postiz dashboard — calendar view of scheduled posts across multiple social networks — Postiz dashboard: drag-and-drop calendar with cross-posting across Instagram, X, LinkedIn, Threads, Bluesky, Mastodon, Reddit and 13 other channels.

Key Features of Postiz

20+ social channels in one queue: Instagram, YouTube, TikTok, X, LinkedIn, Facebook, Pinterest, Threads, Bluesky, Mastodon, Reddit, Warpcast, Discord, Slack, Dribbble and more — including networks Buffer and Hootsuite still treat as second-class.
AI content suite: Generate captions, AI images and short AI videos from inside the composer. Plan limits scale from 20 AI images / 3 videos on Standard up to 500 images / 60 videos on Ultimate.
Public API and webhooks on the entry plan: Authenticate with an API key, schedule multiple posts per request, and trigger downstream pipelines via webhooks — even on the $29/month Standard tier.
Postiz MCP server and agent CLI: Recent releases ship an official Model Context Protocol server and a separate postiz-agent CLI, so Cursor, OpenClaw and other AI coding agents can draft and queue posts from a single prompt.
RSS auto-posting and repeated posts: Plug in any RSS feed, pick a target channel set and Postiz drips new items into the calendar; repeat-post rules handle evergreen content without third-party tools.
Auto-actions on milestones: Auto-posting, auto-liking and auto-commenting fire when a post hits a configurable engagement threshold — useful for boosting top performers without manual babysitting.
Marketplace + team collaboration: Invite teammates to draft, review and approve posts, or buy and sell content packs in the in-app marketplace.
One-command self-hosting: Pnpm monorepo with NextJS, NestJS, Prisma (PostgreSQL), Temporal and Resend — ships an official Docker image and Hostinger-sponsored VPS template.

Postiz post composer with AI assistant generating captions and AI image previews — The Postiz composer: AI assistant for captions plus an integrated AI image and video generator that respects per-channel character and aspect-ratio limits.

What Users Say About Postiz

On Product Hunt, Postiz launched to a wave of positive reviews from indie hackers and SaaS founders, and the Product Hunt review thread consistently flags fast setup, thoughtful UX and the rare combination of AI features plus open-source code as the headline strengths. On Reddit's r/selfhosted and r/SaaS, Postiz is named alongside Mixpost as the only viable open-source social media scheduler in 2026, with commenters singling out Bluesky, Mastodon, Reddit and Warpcast support as "rare" among scheduling tools.

The recurring complaints are real: deployment can be finicky on bare Node setups (multiple users on r/selfhosted ended up switching to the official Docker image), some users feel the $29 Standard tier is steep given gaps like bulk creation and channel-specific duplication for Pinterest, and on G2 a handful of recent reviews call out billing and support response times as rougher than what you get from Buffer. Mediocre at the edges, but the core product is doing the work.

Postiz Pricing

Postiz hosted plans bill monthly (annual saves roughly 20%). The self-hosted Docker version is free under AGPL-3.0 with feature parity to the hosted edition.

Plan	Price	Channels	Key Limits
Self-hosted	$0	Unlimited	AGPL-3.0, run anywhere — you provide compute and storage
Standard	$29/mo	5	1 user, 400 posts/mo, 20 AI images, 3 AI videos, public API, 2 webhooks
Team	$39/mo	10	Unlimited posts & team members, 100 AI images, 10 AI videos, RSS auto-post, 10 webhooks
Pro	$49/mo	30	Unlimited posts/team, 300 AI images, 30 AI videos, 30 webhooks
Ultimate	$99/mo	100	Unlimited posts/team, 500 AI images, 60 AI videos

Every paid plan includes a 7-day free trial and Discord-based support.

Who Should Use Postiz?

Best for: Indie hackers, technical creators, dev-tooling startups and digital agencies that already live in n8n / Make.com / Zapier and want to add social scheduling to existing pipelines — or self-host the whole thing on a $5/month VPS. Also a strong fit for teams that need Bluesky, Mastodon, Reddit, Threads or Warpcast support, which most legacy schedulers either skip or treat as a paid add-on.

Not ideal for: Non-technical solo creators who just want to post to Instagram and X — Buffer's simpler UI will be friendlier. Enterprises that need phone support, granular SOC 2 audit logs or built-in social listening should still look at Hootsuite or Sprout Social.

Pros and Cons

Pros:

Truly open source under AGPL-3.0 — not a stripped "community edition".
20+ channels including Bluesky, Mastodon, Reddit, Warpcast and Threads.
Public API, webhooks, MCP server and an agent CLI on the entry plan — rare at this price point.
Active maintenance: v2.21.7 shipped April 27, 2026, with weekly releases throughout 2026.
Self-hosting is genuinely viable on a single Docker host with PostgreSQL.

Cons:

Standard plan's 5 channels and 400 posts/month feel tight if you manage multiple brands — you jump to $39 quickly.
Self-hosted setup outside Docker can be finicky (Temporal, Redis and Postgres all need wiring).
Some channels still lack bulk-create and per-channel duplication tools (Pinterest is the most cited example).
Support is Discord-only on hosted plans — no SLA-backed phone support like Hootsuite Enterprise.

Alternatives to Postiz

If Postiz isn't the right fit, the closest alternatives are Buffer (cleanest UI, 11 networks, $6/channel/month entry plan but no real public API), Hootsuite (full enterprise stack with social listening but starts at $199/user/month) and Mixpost (the other open-source self-hosted option, fewer integrations and no public API). For mostly-X-and-LinkedIn workflows, Typefully remains the most polished single-purpose tool.

Verdict: Is Postiz Worth It?

Yes — with a clear caveat. If you are a developer, indie hacker or technical marketer who wants to automate social posting from n8n, Make.com or your own scripts, Postiz is the highest-leverage option in 2026 at any price, and it is genuinely free if you self-host. If you are a non-technical creator with a Mac, a single brand and an Instagram-first workflow, Buffer's UI will save you more time than Postiz's open API ever could. We rate Postiz 87/100 — held back from a higher score by Standard-plan limits and Discord-only support, but earning its rating on the strength of 20+ channels, a real API on the entry plan and an MCP server that nobody else in this category ships.

Frequently Asked Questions

Is Postiz free?: Yes — Postiz is fully AGPL-3.0 open source and free if you self-host. The hosted SaaS starts at $29/month for the Standard plan, and every paid plan includes a 7-day free trial.
What social networks does Postiz support?: Postiz supports 20+ channels including Instagram, YouTube, TikTok, X, LinkedIn, Facebook, Pinterest, Threads, Bluesky, Mastodon, Reddit, Warpcast, Discord, Slack and Dribbble.
How does Postiz compare to Buffer?: Buffer has a more polished UI and a cheaper $6/channel entry plan, but it has no public API on entry tiers, no MCP server and no self-hosted option. Postiz costs more on the lowest tier ($29 vs $6) but ships a full public API, webhooks and AGPL-3.0 self-hosting.
Is Postiz open source?: Yes. Postiz is licensed under AGPL-3.0 and the full source lives at github.com/gitroomhq/postiz-app with 29,839 stars as of April 30, 2026.
Does Postiz have an API?: Yes — Postiz exposes a public REST API on every paid plan including Standard, plus an official NodeJS SDK (@postiz/node), an n8n custom node and a Make.com integration.
Who built Postiz?: Postiz is built by Nevo David, founder of Gitroom and previously a maintainer of the open-source notification platform Novu. The project went open source on September 1, 2024.

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