Alternatives / Post Bridge
Looking for an open source Post Bridge alternative? We compared 4 open source social media schedulers by license, supported networks, AI features, self-hosting, and pricing. Postiz covers the most networks, and one of the four, Contentport, focuses only on X.
Written by Maxime DERAME
Last updated:
| Alternative | Best for | License |
|---|---|---|
| Postiz | Most networks, with AI and an MCP server | AGPL-3.0 |
| Mixpost | One-time payment and self-hosting (Pro and Enterprise are paid) | MIT (Lite) + paid Pro/Enterprise |
| TryPost | AI copilot and MCP for agents (young project) | AGPL-3.0 |
| Contentport | Writing and scheduling posts for X only | AGPL-3.0 |
We looked for open-source tools that overlap with Post Bridge's core: scheduling and publishing posts across social networks from one place. We verified each project's license, recent activity, stars, and self-hosting in its repository. We compare supported networks and paid editions, and flag narrow or slower projects. See our methodology for the full criteria.
Self-hosting a scheduler means creating your own developer apps and API credentials for each network and keeping them approved as platform rules change. The hosted plans from these projects handle that for you, at a cost.
Postiz is the closest in everyday use, with a calendar for 30+ networks, AI-assisted drafting, an MCP server and CLI, automation integrations with n8n, Make, and Zapier, and team and agency workspaces. TryPost covers 12 networks with approval flows, and Mixpost offers a polished scheduler with workspaces and a media library.
Mixpost Lite is MIT-licensed, while Mixpost Pro and Enterprise add features and are sold separately, with Pro as a one-time purchase. Contentport is AGPL-3.0 but only manages X content, so it is much narrower than the others.
Postiz, TryPost, and Contentport are AGPL-3.0, so modified network deployments must share their source. Mixpost Lite is MIT.
Postiz and TryPost had commits within days of this update. Mixpost's last commit was in March 2026, and Contentport's in December 2025, so both are slower.
Post Bridge is a proprietary hosted service priced by connected accounts or channels, with your accounts and content on its platform. Open-source alternatives let you self-host, connect unlimited channels, own your data, and use your own AI keys, at the cost of managing social network API access and updates yourself.
Postiz is a self-hostable social media scheduler for planning, generating, and publishing content across 30+ networks, with AI features, analytics, team collaboration, and an API for automation with tools such as n8n, Make, and Zapier. It is AGPL-3.0, with a managed Postiz Cloud also available.
Pricing: Free to self-host; Postiz Cloud plans are paid.
Mixpost is a self-hosted social media management platform with a scheduling calendar and queue, workspaces for teams, a media library, post versions and templates, hashtag groups, and analytics. Mixpost Lite is MIT-licensed, while Mixpost Pro and Enterprise add features and are sold separately, with Pro as a one-time purchase.
Pricing: Free Lite edition; Pro is a one-time payment and Enterprise is paid.
Contentport is an AGPL-3.0 open-source tool for managing X content, with AI-assisted tweets and threads, a visual editor, scheduling, multi-account support, and topic monitoring. It only covers X, so it is much narrower than other social media schedulers, and its last commit was in December 2025. It has free and pro tiers.
Pricing: Free and pro tiers; check the website for pricing.
TryPost is an open-source social media scheduler with a visual calendar, native publishing to 12 networks, an AI copilot for captions and carousels, brand profiles, workspaces with approval flows for agencies, analytics, and a REST API and MCP server so AI assistants can post for you. It is AGPL-3.0 and can be self-hosted or used in its cloud.
Pricing: Free to self-host; the cloud service is paid.
| Alternative | Networks | License | Self-hosted | Best for |
|---|---|---|---|---|
| Postiz | 30+ | AGPL-3.0 | Yes | Wide network coverage |
| Mixpost | Major networks | MIT (Lite) + paid Pro/Enterprise | Yes | One-time payment |
| TryPost | 12 | AGPL-3.0 | Yes | AI and agents |
| Contentport | X only | AGPL-3.0 | Yes | Posts and threads on X |
Want the most networks and automation
Postiz schedules across 30+ networks with analytics, an MCP server, and automation integrations, self-hosted or in its cloud.
Want a scheduler that AI agents can control
TryPost has an AI copilot, approval flows, and an MCP server with a REST API, but it is a young project.
Want to avoid a monthly subscription
Mixpost Lite is free and MIT-licensed, and Pro is a one-time purchase, though Pro and Enterprise features are not open source.
Only publish on X
Contentport offers AI-assisted tweets and threads, scheduling, and multi-account support, but only for X.