Postmill is a web-based platform for publishing and managing social, chat, blog, and email channels from one composer. It supports more than 45 channels, including X, Instagram, LinkedIn, TikTok, YouTube, Discord, WordPress, Reddit, Threads, Pinterest, Telegram, Medium, and Mastodon. Users can generate or repurpose content with AI, schedule posts, publish automatically, and handle conversations through a social inbox. Approval workflows support content review. Analytics include daily snapshots, period-over-period trends, heatmaps, anomaly alerts, and competitor watchlists. Team tools include roles, multi-brand workspaces, and inbox assignment; security controls include encrypted secrets, official OAuth, SSO, and session control. Integrations include API, SDK, webhooks, Zapier, Make, n8n, and MCP. The design studio includes a full canvas, a five-track video timeline, and 36 generation studios. A free plan and 30-day trial are listed. Monthly paid plans are Starter at $9 per month, Pro at $29 per month, Team at $99 per month, and Agency at $249 per month. A self-hosted edition is free on your own hardware and AGPL-3.0 licensed.
Who it is for
Postmill suits individuals or teams managing publishing across social, chat, blog, and email channels. Its workflow, workspace, and inbox tools are relevant to organizations that need content approvals or multi-brand coordination.
What is good
- Supports more than 45 channels
- AI content generation and repurposing
- Approval workflows and social inbox
- Advanced analytics features
- Free plan and self-hosted option
What to know first
- Starter covers one seat and three channels
- Team plan is $99 per month
- Agency plan is $249 per month
- Web platform only
Verdict
Postmill combines multi-channel publishing with inbox, analytics, and team workflows. Compare the plan seat and channel limits with your needs, or consider its self-hosted edition.
Get started with Postmill
- Visit https://postmill.ai/en.
- Choose the free plan or a monthly paid plan.
- Use the web platform to connect supported social, chat, blog, or email channels.
- Choose the self-hosted edition if you want to run it on your own hardware.
- Use the 30-day trial if you want to try a trial plan.
Limits to know first
The free plan is listed for 3 social channels. Starter costs $9 per month and includes 1 seat, 3 channels, and 100 posts per month.
Questions about Postmill
Is Postmill free?
A free plan is listed, with 3 social channels. A self-hosted edition is also free on your own hardware and licensed under AGPL-3.0.
How much do the paid plans cost?
Monthly plans cost $9 for Starter, $29 for Pro, $99 for Team, and $249 for Agency.
Which platforms does Postmill support?
Postmill is a web platform. It supports more than 45 channels, including social, chat, blog, and email services.
Is Postmill open source?
Yes. Postmill is open-source software, and its self-hosted edition is AGPL-3.0 licensed.
What integrations does Postmill offer?
Listed integrations include API, SDK, webhooks, Zapier, Make, n8n, and MCP.
Does Postmill have a free trial?
Yes, a 30-day trial is listed.
Postmill plans and pricing
All plansCompared on social media management tools
- Free plan
- Yes
- Paid from
- $9/mo
- AI content generation
- Yes
- AI content repurposing
- Yes
- Automatic publishing
- Yes
- Approval workflows
- Yes
- Social channels
- 3 channels
- Analytics depth
- advanced
