Open-source Later alternatives

Postiz helps you plan, automate and analyze social media content from one place. You can use the managed Postiz Cloud, or deploy the open-source edition on infrastructure you control. The application is built with TypeScript and Next.js, uses Redis, and is released under the AGPL-3.0 license.

Beyond the web interface for planning posts across social networks, Postiz exposes a public API and a Node.js SDK, and offers an n8n custom node and a Make.com integration for automation. It also advertises working with AI agents. The README describes an analytics side for reviewing how content performs, along with documentation and video tutorials. The project is aimed at creators, marketers and teams who want scheduling tools they can host themselves.

MultiPost is a browser extension that lets creators post the same content to several social networks in a single click, saving them from copying posts and articles between sites by hand. Its topics point to marketing automation, social media and content platforms.

The code here covers the extension's components that are open source under Apache-2.0. The README explains that the official Chrome and Edge packages are built and published from a separate monorepo and also bundle a proprietary Agent module, and that this repository only maintains source code, without running any release workflows. The project is written in TypeScript, with documentation in several languages.

Because the official extension packages include closed components, treat this repository as the open portion rather than the complete product. MultiPost suits content creators, marketers and small teams that cross-post regularly and want to reduce repetitive publishing work.

BrightBean Studio is an open-source social media management platform for creators, agencies, and small businesses. It covers what tools like Buffer, Sendible, and SocialPilot do, planning, composing, scheduling, approving, and publishing posts, but without per-seat, per-channel, or per-workspace limits. It is built with Django, HTMX, and Tailwind CSS and released under the AGPL-3.0 license.

A single multi-workspace dashboard connects to Facebook, Instagram, LinkedIn, TikTok, YouTube, Pinterest, Threads, Bluesky, Google Business Profile, Mastodon, and DEV.to. Features include unlimited organizations, workspaces, and members with role-based access and a client role for outside collaborators, and a content composer with per-platform overrides, version history, templates, and categories. All integrations use the official first-party APIs with your own developer credentials.

The README says every feature is available to every user, with no paid tier. You can deploy it with one-click buttons on Heroku, Render, or Railway, run it with Docker on your own VPS, or use a free hosted version at brightbean.xyz/studio. It suits agencies that manage many client accounts and want to own their social stack.

Mixpost is a social media management platform that you run on your own server, positioned as an open-source alternative to Buffer. It helps brands, agencies and small businesses plan, schedule and publish content from a single place, without a per-seat subscription.

You can bring all your social accounts together, build a content calendar and schedule posts for the times your audience is most active. Team features let you assign tasks, manage permissions and watch team performance. Analytics show audience behavior for each platform based on the data that the networks provide.

Mixpost is built with Laravel, PHP and Vue and is licensed under MIT. The project says it targets enterprises, small and medium businesses, marketing agencies, solopreneurs and e-commerce stores. Its description promises no subscriptions and no limits, since you host it and control the data yourself.

Shoutrrr is a social media scheduling tool that you run yourself. You connect your accounts, draft a post once and send it to several networks at the same time or queue it to go out on a recurring schedule. It is presented as an open-source alternative to Buffer, Typefully and Hootsuite, with no monthly seat fees and no third party holding your tokens or data.

Supported platforms include X, Bluesky, LinkedIn, Facebook, Instagram, Threads and Discord, and the text can be adjusted per network. A posting queue with recurring time slots and a month calendar keeps the feed consistent, and analytics show how posts perform. Teams get workspaces, roles and email invites, so clients or brands can be kept separate.

It is written in PHP, runs anywhere Docker does and is released under the Apache 2.0 licence. The project comes from the coollabsio organization and is relatively new, with its first release in mid-2026.