The Best Open Source Social Media Schedulers in 2026

Postiz is the open-source answer to Buffer and Hootsuite: self-host it free with unlimited accounts, or use the cloud version. Schedules to 15+ platforms including Reddit, Discord, and Telegram, with AI content features built in.

Mixpost is the polished self-hosted alternative to Buffer and Hootsuite: install it on your own server with Docker and schedule unlimited posts to unlimited accounts with no monthly fees. Built on Laravel, with a free Lite edition and a paid Pro license.

SocioBoard is one of the oldest open-source social media management projects — scheduling, feeds, and team features across major networks, self-hosted for free. Development has slowed, but it remains a reference point in open-source social tooling.

n8n isn't a scheduler — it's the fair-code automation platform people build schedulers with: cron triggers, AI nodes, and hundreds of integrations wired into custom content pipelines. The backbone of most DIY and AI-agent posting stacks.

Activepieces is the MIT-licensed Zapier alternative: no-code flows connect schedule triggers, AI steps, and social 'pieces' for X, LinkedIn, Facebook, and Instagram into automated posting workflows — self-hosted free or on their cloud.

Automatisch is a straightforward open-source Zapier alternative (AGPL): trigger-action flows that cover simple social automation — RSS to X, scheduled posts from a sheet, cross-posting to Mastodon — self-hosted with your data staying put.

Huginn is the original self-hosted agent system (45k+ GitHub stars): chains of 'agents' that monitor feeds and events, transform content, and post on schedule. The hacker's answer to social automation since 2013 — MIT-licensed and endlessly moldable.

PostyBirb is a free, open-source desktop app beloved by artists: fill in your artwork's details once and it posts to 20+ galleries and social sites — DeviantArt, FurAffinity, Itaku, Bluesky, Mastodon, Telegram — with scheduling built in.

FediPlan is the simplest tool on this list: a free, open-source web app that schedules Mastodon and Pleroma posts using the server's built-in scheduling API. No account, no install, no server of your own — connect and queue.

Bridgy is the IndieWeb's bridge: publish posts on your own website and Bridgy syndicates them to Bluesky and Mastodon, then feeds replies and likes back to your site. Free, open source, and the backbone of the POSSE publishing model.

Revive Old Posts is a GPL WordPress plugin that keeps your archive working: it automatically shares your old (and new) blog posts to social networks on a schedule you set — hashtags from categories, UTM tracking, and set-and-forget rotation.