Open-source schedulers have come a long way. A few years ago there were one or two options, mostly abandoned. In 2026 there are several actively maintained projects, and most offer a hosted version if you don't want to run servers.
This roundup covers the ones worth trying, including ours. Everything here was checked on 27 September 2026: licences and activity from each project's GitHub repo, and prices from their websites. Star counts move quickly, so treat them as a snapshot.
What "open source" gets you (and what it doesn't)
You get the code to read and change, no lock-in, and the option to run it on your own servers for the cost of hosting.
You don't get free API access to the networks. When you self-host, you register your own developer app with each network (X, LinkedIn, Meta, TikTok, Google) and go through its approval process. Some are instant, others take weeks, and X's API is now pay-per-use. That's the main reason many people who love open source still pay for the hosted version.
At a glance
| Licence | Networks | Activity | Hosted option | |
|---|---|---|---|---|
| Postiz | AGPL-3.0 | 30+ | Very active (v2.24.0, Sept 2026) | From $29/month |
| Postbase | AGPL-3.0 | 6 today, Meta coming | Very active | From $29/month |
| Mixpost Lite | MIT | 3 (Facebook Pages, X, Mastodon) | Slower (last release March 2026) | No; paid Pro licence |
| BrightBean Studio | AGPL-3.0 | 11, no X | Active | Free hosted version |
| OpenPost | AGPL-3.0 | 16 | Very active (v6.3.0, Sept 2026) | Paid plans |
| TryPost | AGPL-3.0 | Not checked | Active (v1.1.0, Sept 2026) | Hosted at trypost.it |
1. Postiz: the most complete
Postiz is the biggest open-source scheduler by a distance, with about 36,000 GitHub stars and more than 30 networks: X, LinkedIn, Instagram, Facebook, TikTok, YouTube, Threads, Bluesky, Mastodon, Reddit, Pinterest, Discord and more. It ships an API, CLI and MCP server on every hosted plan.
- Licence: AGPL-3.0
- Hosted: $29/month for 5 channels, up to $99/month for 100 channels
- Best for: anyone who wants the widest network coverage, self-hosted or hosted
2. Postbase: built for AI agents
That's us, so weigh this one accordingly. Postbase focuses on a smaller set of networks (X, LinkedIn, Bluesky, Mastodon, TikTok and YouTube today, with Instagram, Facebook and Threads waiting on Meta's review) and on AI: an agent built into the app, plus a hosted MCP server so Claude, Cursor and other AI tools can schedule posts.
- Licence: AGPL-3.0
- Hosted: $29/month for 5 channels, $39/month for 15 channels and team seats
- Best for: people who want Claude or another AI tool to post for them, with a calendar to check its work
3. Mixpost: MIT-licensed, with a paid Pro version
Mixpost is a Laravel app with a permissive MIT licence for its Lite edition. Lite covers Facebook Pages, X and Mastodon. The Pro ($299 one-time) and Enterprise ($1,199 one-time) editions add Instagram, LinkedIn, YouTube, TikTok, Pinterest, Threads, Bluesky and more, but those are commercial licences, not open source.
- Licence: MIT (Lite only)
- Hosted: none; self-host only
- Best for: Laravel shops that want a permissive licence and are happy to buy Pro for more networks
4. BrightBean Studio: scheduling plus an inbox
BrightBean Studio is a newer project (started in March 2026) that combines scheduling with an inbox and analytics. It covers Facebook, Instagram, LinkedIn, TikTok, YouTube, Pinterest, Threads, Bluesky, Mastodon and more. X isn't in its list of networks.
- Licence: AGPL-3.0
- Hosted: a free hosted version
- Best for: small teams that want an inbox too, and don't need X
5. OpenPost: the widest fediverse coverage
OpenPost moves fast (it was on v6.3.0 by September 2026) and supports 16 networks, including fediverse platforms most tools skip: Pixelfed, PeerTube, Lemmy and PieFed, alongside the usual X, LinkedIn, Instagram, TikTok and YouTube.
- Licence: AGPL-3.0
- Hosted: paid plans at openpo.st (we didn't check prices)
- Best for: fediverse-heavy users
6. TryPost: one to watch
TryPost is a young AGPL-3.0 project, started in January 2026, with a hosted version at trypost.it. We didn't check its network list or prices, so look at its site before deciding.
What about Socioboard?
Socioboard still turns up in older lists, but its last release was in 2019, and its 2026 activity is automated dependency updates. We'd treat it as unmaintained.
Should you self-host?
Self-host if you:
- want full control of your data, or have to keep it on your own infrastructure
- are comfortable running a database, a queue and a web app
- can register developer apps with each network and wait for approvals
Use a hosted version (of any tool on this list) if you'd rather spend the time posting. For many teams the best of both worlds is a hosted open-source tool: you can read the code and leave at any time, and someone else handles app reviews, token refreshes and uptime.
How to choose
- Most networks: Postiz.
- AI agents and MCP: Postbase or Postiz.
- Permissive MIT licence: Mixpost Lite.
- An inbox too, and no need for X: BrightBean Studio.
- Fediverse: OpenPost.
Not set on open source? See the best Buffer alternatives for hosted options too.
Postbase