Buffer Open Source Alternative: Price the Bill That Starts After You Cancel

Buffer free plan, as we read it on 2026-09-19, gives you three channels and ten scheduled posts on each, and the day you add a fourth account it stops being a plan and starts being a trailer. You search for an open source alternative, and the first page is six directory sites listing the same twelve projects in the same order, none of which tells you what happens after you install one.

What happens is that a subscription becomes four smaller bills. This piece prices them with numbers fetched first-hand on 2026-09-20, and refuses to invent the ones we could not fetch.

What you are escaping, priced properly

Buffer does not sell tiers so much as a meter. Read from its machine-readable pricing page on 2026-09-20, the per-channel rate is progressive: $6 for channels 1 to 10, $4 for channels 11 to 25, $3 for channels 26 to 50, and $1 above 50 on Essentials. Each band applies only to the channels that fall inside it, which its own worked examples confirm.

A methodological footnote worth stealing: on the Team plan the 11 to 25 and 26 to 50 bands are $4 and $3 as well, identical to Essentials. Two price columns matching cell for cell is normally the signature of a parsing error, and our standing rule is to drop a column that does that. We kept this one because the vendor publishes a worked total that reverses out: Team at 25 channels is $180, which is only true if channels 11 to 25 are billed at $4. When columns match, look for a total you can solve backwards before you believe or discard them.

So the honest framing of your escape: at ten channels you are paying $60 a month, and at fifty you are paying $195 a month. Those are the numbers self-hosting has to beat, and they are the numbers most comparison posts never write down.

The Team plan makes the same point more sharply. Its first ten channels cost $12 each, so ten channels is $120 and the plan looks like double Essentials. But because bands eleven to fifty are priced identically on both plans, fifty channels on Team is $255 against $195 — a difference of exactly $60, which is ten times the $6 gap on the first ten channels. Everything Team adds above your tenth channel is included at no extra per-channel cost. The practical reading: the more accounts you run, the less the upgrade costs you in relative terms, which is the precise opposite of how the plan appears to a reader comparing starting prices.

Two vendors we wanted in this comparison are missing, and it is worth saying why rather than filling the gap from memory. Sendible returned a bare currency placeholder instead of prices when we fetched it on 2026-09-20, for the ninth round running, because its figures are rendered by script after load. Hootsuite plan cards were blank again, with amounts appearing only inside its FAQ text. Structure we can describe; numbers we did not fetch today do not go in a table, here or anywhere else.

The four bills that replace the subscription

Bill one: a machine that stays awake. Postiz documentation, read 2026-09-20, asks for a minimum of 2 vCPU, 2 GB RAM and 20 GB of disk for light single-user use, and recommends 4 vCPU, 8 GB RAM and 50 GB plus a persistent volume for uploads. We did not fetch hosting prices today, so we are not printing any. Take those two specs to your provider pricing page and write down the two figures yourself, because that subtraction is the entire decision.

Bill two: three daemons, not one app. The same page lists PostgreSQL 14, Redis 6, and Temporal, marked required since v2.12.0. The official Docker compose bundles Temporal, which hides it right up until the day you split services across hosts or debug a stuck queue. A workflow engine is a serious thing to adopt by accident.

Bill three: platform credentials, which is the one nobody prices. Postiz says it in its own FAQ, and we quote it because a vendor admitting this is stronger than us asserting it: "Facebook, Instagram, Threads and YouTube are more complicated and can usually take more than a month with multiple changes in the submissions, privacy policy and terms of service." You are not just installing software, you are applying to be a developer at four companies, with a privacy policy and terms of service of your own. We went through that in detail in how long social media app approval takes.

Bill four: you. Upgrades, backups, certificate renewals, token expiry at three in the morning. There is no invoice for this one, which is exactly why it gets left out of the comparison.

Notice the shape of that list. Only the first bill is money, and it is the smallest one. The second is complexity you carry forever, the third is a wait you cannot shorten by paying, and the fourth is attention taken from the work that actually grows accounts. A comparison that prints a server price next to a subscription price and stops there has compared the two least decisive numbers on the page, which is precisely what every directory listing does.

Two shapes of open source, and they are not substitutes

Both sets of numbers below were fetched on 2026-09-20 from the vendors themselves.

The line that decides it for most readers is the Mixpost Lite network list. The free edition cannot publish to Instagram or TikTok. Nearly every listicle puts that in a footnote, and for anyone leaving Buffer because of Instagram, it is the whole answer. We put it in the second paragraph of Postiz vs Mixpost for the same reason.

Open source removes the invoice, not the work. What you stop paying monthly you start paying in daemons, developer applications and your own evenings.

The arithmetic, and the case for not doing it

The payback sum is one division you can run on today numbers: a one-time $299 against your current Buffer bill. At ten channels that is $299 divided by $60, so five months. At fifty channels it is $299 divided by $195, so under two months. Then add the server you priced in bill one, and subtract nothing for bill three, because credential approval is a wait, not a fee.

Which gives a clean decision rule. Self-host when your channel count is high enough that the subscription is your largest line item, and when a month of credential paperwork is acceptable. Do not self-host when any of the following is true:

• You are leaving Buffer to save $60 a month. The server plus your time eats it.
• You need Instagram or TikTok this week. The approval queue does not care how good your deployment is.
• Nobody on the team wants to own Postgres, Redis and a workflow engine when publishing silently stops.
• Your actual bottleneck was never scheduling. That case is argued in Buffer alternatives: was scheduling ever your bottleneck.

There is a third shape besides hosted and self-hosted, which is running the posting on your own desktop against accounts you log into yourself. That is the category NoobClaw is in: local fingerprint browser, your own logins, no credentials handed to a server and no developer application queue, with membership pricing on the website and in the app. It is a different trade, not a strictly better one, and it is worth knowing it exists before you provision a VPS. The full cost breakdown of the Postiz route is in the real cost of self-hosted Postiz.

Questions people ask before cancelling Buffer

Is there a genuinely free open source Buffer alternative?

Yes, with a caveat you must read first. Mixpost Lite is free under MIT and, as of 2026-09-20, publishes to Facebook Pages, Mastodon and X only. Postiz is AGPL-3.0 and free to deploy but expects PostgreSQL, Redis and Temporal to be running. Free refers to the licence, never to the hosting.

How much does self-hosting really cost per month?

We are not going to guess a number. Take the published minimum, 2 vCPU and 2 GB, and the recommended 4 vCPU and 8 GB, to your provider pricing page and read both figures. Then add the one-time licence if you need one, and treat the month of platform app approval as a scheduling cost rather than a cash one.

Will self-hosting get around platform posting limits?

No. Rate limits and posting caps live with the platform API, not with the tool, so the same ceilings apply whether the code runs on Buffer servers or yours. What changes is who owns the developer application, who fills in the privacy policy, and who gets the email when access is revoked.