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Postiz vs Buffer: The Side-by-Side Breakdown

These two schedulers solve the same surface problem, planning posts across networks, but they're built for different people. Postiz is open-source, self-hostable, and engineered for developers who want to drive publishing through AI agents and automation. Buffer is the polished cloud tool with a genuinely useful free plan and a near-zero learning curve. The choice comes down to whether you want ownership and automation or simplicity out of the box.

Postiz

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Postiz is an open-source social media scheduler that publishes across more than 30 networks from one dashboard, with AI content generation and a visual calendar. It's built to be driven by AI agents and automation, shipping an MCP server, a public API, and native n8n, Make, and Zapier support.

Pricing: Self-hosting is free under AGPL-3.0 if you bring your own server. The hosted version runs four tiers, Standard at $29 a month for 5 channels, Team at $39 for 10, Pro at $49 for 30, and Ultimate at $99 for 100, with about 20 percent off on annual billing and a limited free plan.

Key Features

  • Cross-posting to 30-plus social networks
  • MCP server for Claude and ChatGPT control
  • Public API with OAuth2 and webhooks
  • AI text, image, and video generation
  • Self-hostable via a single Docker host

Pros

  • + Fully open-source and free to self-host
  • + Best-in-class API, MCP, and automation support
  • + Active GitHub community with frequent releases
  • + Broad fediverse and blogging-platform coverage

Cons

  • - Self-hosting means running a Next.js, NestJS, and Temporal stack yourself
  • - AGPL-3.0 license blocks closed commercial forks
  • - Hosted AI image and video credits are capped per tier
  • - Overkill for a non-technical user who just wants simple scheduling

Buffer

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Buffer is a social media management tool focused on simple scheduling, publishing, and analytics across the major networks. It's known for a beginner-friendly interface and one of the most generous free plans in the category.

Pricing: The Free plan covers up to 3 channels with 10 scheduled posts each. Essentials is $5 per channel per month billed annually, or $6 monthly. Team is $10 per channel annually, or $12 monthly, adding unlimited members and approval workflows. Everything is priced per channel, with a free AI Assistant on every tier.

Key Features

  • Scheduling across 11-plus social channels
  • Free plan with 3 channels
  • Free AI Assistant for captions on all plans
  • Analytics with audience demographics and reports
  • Per-channel pricing that scales cleanly

Pros

  • + One of the most generous real free plans available
  • + Very clean, low learning-curve interface
  • + Free AI caption assistant with no per-generation caps
  • + Supports Bluesky, Mastodon, and Threads alongside the majors

Cons

  • - Per-channel pricing gets expensive fast for many accounts
  • - Free plan caps you at 10 scheduled posts per channel
  • - AI is text only, no image or video generation
  • - No self-hosting, API depth, or agent control

The Verdict

Pick Postiz if you're technical, want to own your data, or plan to wire posting into AI agents and automation pipelines, the MCP server and self-hosting are unmatched. Pick Buffer if you're a solo creator or small team who wants a clean tool that just works, with a free plan that's genuinely usable from day one.

Choose Postiz if:

Developers and agencies who want open-source ownership, 30-plus networks, and to drive posting from AI agents and automation.

Choose Buffer if:

Solo creators and small teams who want a clean, beginner-friendly scheduler with a genuinely usable free plan.

Frequently Asked Questions