Buffer has been the default social scheduling tool for over a decade. Simple interface, reliable scheduling, reasonable free tier.
But the cracks are showing.
The free plan caps you at 3 channels and 10 scheduled posts per channel. Paid plans start at $6 per channel per month — and that adds up fast if you're publishing to Bluesky, Mastodon, LinkedIn, and Twitter. Their Trustpilot score sits at 2.1 out of 5. And your content? It lives in Buffer's database. If you leave, your publishing history stays behind.
If you're looking for open-source alternatives you can self-host and actually own, there are three real options in 2026. I've tried all of them. Here's what I found.
Postiz
GitHub: 27K+ stars. License: AGPL-3.0. Stack: Next.js, PostgreSQL, Redis, Temporal.
Postiz is the most popular open-source social scheduling tool right now, and for good reason. The UI is polished. The feature set is deep. AI-assisted content generation, team workspaces, analytics dashboard — it's a serious product.
What's good:
- Best UI of any open-source option. Feels like a proper SaaS product.
- Supports Twitter/X, LinkedIn, Instagram, Facebook, YouTube, TikTok, and more.
- Team collaboration with role-based access.
- AI content suggestions built in.
- Active community, fast development pace.
What's not:
- Self-hosting is heavy. You need PostgreSQL, Redis, and Temporal running. That's three services to maintain, monitor, and back up. Not a weekend project.
- AGPL license. If you modify Postiz and expose it as a service, you must open-source your changes. For internal company use this is fine. For building on top of it, your legal team will have opinions.
- Your content is still in a database. It's your Postgres instance, which is better than Buffer's database. But your posts are rows, not portable files.
- Cloud pricing. The hosted version starts at $29/month with a 400-post cap. Gets expensive fast.
- No Bluesky or Mastodon. In 2026, with both platforms growing rapidly, this is a meaningful gap.
Best for: Teams who want a full-featured social management platform and have the infrastructure to self-host a multi-service stack.
Mixpost
License: MIT. Stack: Laravel (PHP), MySQL/PostgreSQL.
Mixpost is the quieter alternative. Built on Laravel, it's a solid social scheduling tool with a clean interface and a lighter footprint than Postiz.
What's good:
- Clean, functional UI. Not as flashy as Postiz, but everything works.
- MIT license — no copyleft concerns.
- Supports Twitter/X, Facebook, Instagram, Mastodon, LinkedIn, Pinterest, TikTok, YouTube.
- Simpler self-hosting than Postiz. Laravel + MySQL is a well-understood stack.
- Media library for managing images and videos.
What's not:
- Still database-bound. Your content lives in MySQL. Better than someone else's database, but still not portable files.
- No CLI, no API, no MCP. Browser-only workflow. Can't script it, can't automate it, can't integrate it with your development tools.
- PHP stack. If your team doesn't run PHP, this adds operational complexity. Laravel is great, but it's a specific ecosystem.
- No Bluesky support. Same gap as Postiz.
- No blog platform publishing. Social networks only — no Medium, Dev.to, or Substack.
Best for: PHP teams or solo creators who want a straightforward self-hosted scheduler without the infrastructure overhead of Postiz.
Blurt
License: MIT. Stack: Go binary, no database.
Full disclosure: I built this one. But I'll try to be honest about the trade-offs.
Blurt takes a fundamentally different approach. Your posts are markdown files on your filesystem. No database. No Redis. No orchestrator. A folder and a single process.
What's good:
- Your posts are files you own. Markdown with YAML frontmatter. Portable, greppable, versionable with git.
- System of record. After publishing, permalinks are written back into your files. Your markdown becomes the canonical history.
- 6 platforms. Bluesky, Mastodon, LinkedIn, Medium, Dev.to, Substack. Social networks and blog platforms.
- CLI, API, MCP server, and web UI. Publish from your terminal, your code, your AI editor, or a browser.
- Trivial self-hosting. One binary. One folder. No database, no Redis, no Docker required.
- MIT license. Do whatever you want with it.
What's not:
- Developer-oriented. If you don't know what markdown is, Blurt isn't for you (yet). The web UI helps, but the soul of the product is files and terminal.
- Fewer social platforms. No Twitter/X, Instagram, Facebook, TikTok, or YouTube. Blurt focuses on platforms where text-first content thrives.
- Younger project. Postiz has 27K stars and a large community. Blurt is newer and the ecosystem is smaller.
- No AI features. No content suggestions, no auto-hashtags. Write your own words.
- No analytics dashboard. Blurt publishes. It doesn't track engagement. Use each platform's native analytics.
Best for: Developers and technical creators who want to own their publishing history as files, publish to text-first platforms, and automate everything from the terminal.
The real question: what do you actually need?
These three tools make very different bets:
- Postiz bets that you want a full-featured SaaS replacement you can self-host.
- Mixpost bets that you want something simpler that just works.
- Blurt bets that you want to own your content as files and automate publishing from the terminal.
If you need Instagram scheduling and team collaboration, Postiz is the answer. If you want a clean UI without the infrastructure headache, Mixpost. If you care about data ownership and work in a terminal, Blurt.
All three are better than paying $6/channel/month for the privilege of storing your content in someone else's database.
Blurt is open source and building in public. Check it out on GitHub, or find me on Bluesky and Mastodon.