Postiz vs Buffer (2026): Open Source Freedom vs Someone Else’s Problem
- Postiz is AGPL-3.0 and self-hostable; its cloud tiers run $29–$99/mo for 5–100 channels. Buffer sells per-channel on a mature, hosted stack.
- The real trade is not price. It is who deals with Meta app review, TikTok developer audits and X API repricing — Buffer absorbs that, self-hosted Postiz hands it to you.
- Postiz includes an AI copilot, API and webhooks on every tier, which makes it the stronger pick if you are wiring social posting into an automation stack.
- Neither tool differentiates content across accounts. If you run a multi-account setup, that gap costs you more than the subscription does.
The way this comparison usually gets framed is "free and open source vs paid and polished." That framing will lead you to the wrong answer, because the money is not the interesting variable here.
The interesting variable is: when Instagram changes its API and your scheduled posts start failing at 6am, whose problem is that?
The prices, stated plainly
- Postiz cloud: $29/mo (5 channels) · $39/mo (10) · $49/mo (30) · $99/mo (100). Unlimited posts, AI copilot, API and webhooks on every tier. 7-day trial. Self-hosting is free under AGPL-3.0, and their docs say the hosted and self-hosted versions currently have no feature difference. (postiz.com/pricing + GitHub, verified 2026-08-30.)
- Buffer: sells per connected channel with a free tier that covers a small number of channels and a limited queue. Buffer has repriced and repackaged more than once, so check the current page rather than any blog post, including this one.
On raw channel-per-dollar, Postiz's $99 Ultimate tier at 100 channels is aggressive. But that number only matters if you actually have 100 channels, and most people comparing these two have between 3 and 12.
Channel-count pricing rewards people who already have scale. If you are still building it, you are optimizing the wrong column.
The actual trade: who owns the API pain
Buffer's product is not really the scheduling UI. Anyone can build a queue. Buffer's product is that it stays working across a dozen platforms that change their APIs, permissions and review policies on their own timetable.
When you self-host Postiz, that maintenance moves to you in two ways:
- Your own developer apps. You register with Meta, TikTok, X, LinkedIn and friends, and you go through their review processes for publishing permissions. Some of these are genuinely hard for a solo operator to pass.
- Your own upgrades. When a platform breaks something, you pull the fix, redeploy, and verify. The Postiz project is active (~35.3k GitHub stars), so fixes do arrive — but applying them is on you.
Postiz's cloud tier removes both, at which point the comparison becomes plain SaaS vs SaaS, and you are choosing on price, channel count and interface. That is a much simpler decision.
Where Postiz clearly wins: you are building an automation stack
Postiz puts API access, webhooks and custom integrations on every tier, and documents n8n / Make / Zapier usage. If your plan is "my pipeline generates posts and something else publishes them," that is a materially better fit than a tool where API access is gated to an upper plan.
Buffer's API has its own limits that matter if you are driving it programmatically — we went through them in Buffer API limits for AI agents.
Where both of them stop
Both tools take a post you already wrote and deliver it. Neither writes eight genuinely different posts for eight accounts, and neither logs into an account the way a person does — they publish through APIs, which is fine for a brand page and awkward for the kind of account that needs to look like a person runs it.
That is a different category. NoobClaw is a desktop app on your own computer: you log into your own accounts in locally isolated fingerprint browser profiles (no credentials handed to a third party), and each account produces its own content from its own niche and persona, on randomized human-like timing rather than on the hour. If your bottleneck is "I have the accounts, I do not have enough distinct content," a scheduler will not fix it — see repurposing content for multiple platforms for why.
FAQ
Is Postiz actually free?
The software is, under AGPL-3.0, if you self-host. You still pay for a server and you supply your own platform API credentials. The cloud version starts at $29/mo.
Does Postiz have a free plan like Buffer?
Postiz cloud offers a 7-day trial rather than a permanent free tier. The permanently free path is self-hosting.
Which is better for an agency with many clients?
Compare Postiz Ultimate (100 channels, $99/mo, unlimited team members) against Buffer's per-channel total at the same channel count. Postiz is usually cheaper at high channel counts; Buffer usually wins on approval workflows and reliability you do not have to think about.
The one thing to do today
Answer one question in writing: if a platform integration breaks on a Saturday, do I want to be the person who fixes it? An honest "no" means you want a hosted plan — from either vendor — and the open-source column stops being relevant.
Related: Postiz vs Mixpost, Buffer alternatives beyond scheduling, Blotato vs Buffer.