Postiz and Mixpost Without the Docker: Free Hosted Alternatives (2026)

If you’re searching for a Postiz or Mixpost alternative because your self-hosted install broke, here’s the thing worth knowing before you fix it: self-hosting never removed the hard part. The hard part is getting each social platform to approve your developer app so it’s allowed to publish. Docker, Redis and a VPS are the easy half. The approval queue at TikTok and Meta is the half that actually determines whether your posts go out.

I’m Giovanni Fu Lin, and I built SchedulePost, which is free and hosted — so I’m obviously arguing for a category my own tool sits in. I’ll try to earn that by being specific about when self-hosting is genuinely the right answer, because for a real slice of readers it is.

The three tools, side by side

Prices and limits below are as of August 2026. Check each vendor’s own pricing page before deciding on cost, since these move.

	SchedulePost	Postiz	Mixpost
Model	Hosted, free	Open source; self-host free, or cloud	Self-hosted; free Lite, paid Pro
Price	Free	Cloud $29–$99/mo (5–100 channels)	Lite free · Pro $299 one-time · Enterprise $1,199
You run a server?	No	Only if self-hosting	Always
Platforms	Instagram, TikTok, YouTube, Facebook, Threads, X	Broad — most major networks	Broad on Pro; Lite is Facebook Pages, Mastodon, X only
Short-form video focus	Yes, the entire product	One capability among many	One capability among many
API	Yes	Yes	Pro only
MCP / AI agents	Yes	Yes, plus n8n node and agents CLI	Pro only
Team features	No	Yes	Yes
Bring your own platform apps	No — handled for you	Yes, if self-hosting	Yes

Two rows deserve to be pulled out, because they’re the ones that change decisions.

Mixpost Lite can’t post your short-form video. The free tier publishes to Facebook Pages, Mastodon profiles, and X profiles. That’s it. No TikTok, no Instagram, no YouTube. If you found Mixpost while looking for a free way to cross-post Reels and Shorts, the free tier does not do that job — the platforms you need start at the $299 Pro licence. This isn’t a criticism of Mixpost, whose Pro offering is a genuinely good deal for agencies at one-time pricing. It’s just a mismatch that costs people a weekend before they discover it.

Postiz is the most agent-forward tool in this category. It ships an MCP server, an n8n custom node, a Make.com integration, an agents CLI, and dedicated integrations for several agent products. If AI-driven publishing is your main interest, Postiz has invested more surface area there than anyone. I cover that whole category, including where my own tool fits, in can Claude post to TikTok and Instagram.

The cost that self-hosting doesn’t remove

Here’s the part I wish someone had written plainly before I built publishing integrations myself.

When you deploy Postiz or Mixpost on your own server, you get the scheduling application. You do not get permission to publish. Each social platform requires its own developer app, registered by you, reviewed by them:

• TikTok distinguishes between uploading to a user’s drafts and posting publicly. Public posting needs the video.publish scope, and TikTok only grants that after auditing your app. Until then, your self-hosted scheduler can drop a draft into your TikTok inbox and you go tap post manually.
• Instagram needs a Meta app with Content Publishing API access, an Instagram professional or creator account linked to a Facebook Page, and Page Publishing Authorization completed. Meta’s app review is its own process with its own timeline.
• YouTube needs a Google Cloud project with the Data API enabled and a quota that fits your upload volume.
• X needs API access under its current paid tiers.

Postiz is straightforwardly honest about this: it sells app approval as a paid add-on service for self-hosters, and its FAQ addresses the “I self-host, why am I paying for approval” question directly. That’s the market telling you where the real difficulty lives.

So the actual comparison isn’t “free self-hosted versus paid hosted”. It’s:

	Self-hosted	Hosted
Server, database, Redis, backups, upgrades	You	Them
Developer app per platform, plus review	You	Them
Token refresh when a platform rotates its auth	You	Them
Licence cost	$0 to $299	$0 to $99/mo
Data location	Yours	Theirs

The middle row is the one that turns a Saturday project into a three-week wait.

When you should absolutely still self-host

I mean this genuinely — there are four cases where I’d tell you to ignore everything above and run your own instance.

You have a compliance or data-residency requirement. If contracts or regulation say your clients’ content can’t sit on a third party’s infrastructure, that decides it. No hosted tool argument beats a legal requirement.

You’re reselling scheduling under your own brand. Mixpost Enterprise exists specifically for this — white-label branding, subscription management, customer billing. If you’re building a SaaS on top of a scheduler, a one-time $1,199 licence against per-seat cloud pricing is straightforward arithmetic in your favour.

You need a platform nobody hosted supports. Mastodon, Pinterest, Bluesky, Pixelfed, Google Business. If your audience is on a network the hosted tools skip, self-hosting is how you reach it. SchedulePost doesn’t support any of those and isn’t going to.

You want to change the software. Postiz is open source and Mixpost is built on an open-source core. If you intend to modify behaviour, that access is worth real money and hosted tools give you none of it.

If none of those four describe you, the honest question is what you’re buying with the server maintenance. For a solo creator posting vertical video, my answer is usually: not much.

If you’re coming off a broken install

A few practical notes, since a lot of people reach this page mid-problem.

Before you migrate, check whether the failure is worth fixing. A 500 error on a fresh install or a container that won’t come up is usually a config or resource problem, not a dead end, and both projects have active communities. Migrating because you hit one error is often the more expensive path.

Your queue is smaller than it feels. People delay migrating because they imagine losing everything. In practice a scheduling queue is a few weeks of pending posts. Export or screenshot the captions, and move on.

The real migration work is OAuth. Whatever tool you land on, you reconnect each social account through its sign-in flow. Budget a few minutes per platform and do it once.

Where SchedulePost fits, and where it doesn’t

SchedulePost is free, hosted, and implements direct publishing for six platforms. There’s no server, no Docker, and no developer app for you to register — the platform approvals are handled on my side, which is precisely the work that self-hosting hands back to you. Upload a vertical video once, pick your platforms, set a time or queue it, and check one dashboard for what’s scheduled versus live. There’s an MCP server and a ChatGPT app if you want an agent doing it for you.

It is also much less tool than Postiz or Mixpost Pro. No team seats, no approval workflows, no client workspaces, no white-labelling, no content calendar for non-video posts, no LinkedIn or Pinterest or Bluesky. It is a narrow tool for one loop: one vertical video, six platforms, no re-uploading. If your needs are broader than that loop, Postiz’s cloud plans or Mixpost Pro are better answers than mine, and I’d rather say so than sell you a mismatch.

If the narrow loop is what you actually need, try it at schedulepost.fulinlabs.com — it takes less time than pulling a Docker image. There’s a broader survey of the category in the best Buffer alternative for short-form video, and the build details are on the project page.