Postmill AI
Postmill AI: A flexible open-source suite with AI workflows, self-hosting, and plans from $9 per month. Ranked #26 of 38 in AI Social Media Management Software by our editors (6.6/10); pricing: Free plan · 30-day trial; best for open-source teams needing advanced AI workflows.
At a glance
- Editor score6.6 / 10
- PricingFree plan · 30-day trial
- Best forOpen-source teams needing advanced AI workflows
- Free planYes
- Paid from$90/yr
- AI content generationYes
- Facts checked20 Sep 2026
Where it wins
- AI writing, repurposing, brand voice, and analytics recommendations
- Self-hosting, public API, MCP, webhooks, and OAuth applications
- Approvals, roles, multi-brand workspaces, inboxes, and advanced analytics
Where it doesn't
- Listed category coverage is narrower than leading suites
- AI provider and usage costs are separate from subscriptions
- Advanced collaboration and agency features start on higher tiers
Our verdict on Postmill AI
Postmill AI is an open-source social media management platform for individuals, teams, and agencies. It brings together multi-channel composition, per-channel previews, visual scheduling, automatic publishing, design tools, reply management, analytics, campaigns, and client reporting. The platform is available as a hosted cloud service or as a self-hosted deployment under the AGPL-3.0 license, with web and API access. Its AI capabilities include writing, rewriting, content repurposing, brand voice, assisted replies, compliance checks, and analytics recommendations using customer-configured provider keys.
The plan structure makes Postmill accessible for smaller teams while adding operational controls as needs grow. Starter costs $9 per month or $90 per year and includes the composer, visual calendar, auto-publishing, design studio, AI Designer, reply inbox, and persisted analytics. Pro costs $29 per month or $290 per year, adding campaigns with goals and client reports, API and MCP access, draft approvals, AI generation studios, and 5 GB of storage. Team costs $99 per month or $990 per year, with custom-role RBAC, multi-brand workspaces, team inbox assignment, campaigns, API, and MCP. Agency costs $249 per month or $2,490 per year and adds a competitor watchlist, client-shareable live reports, and priority support. A free plan and 30-day free trial are also available.
Its strongest fit is for organizations that value control over deployment and AI configuration. Integrations include X, Instagram, LinkedIn, TikTok, YouTube, Discord, Telegram, Mastodon, WordPress, Slack, Matrix, LINE, OpenAI, Anthropic, and Google Gemini. Advanced analytics includes daily snapshots, best-time heatmaps, and anomaly alerts, while campaign goals and UTM tracking support reporting workflows. Teams wanting self-hosting, programmable access, and approval structures should consider Postmill AI. Organizations seeking the broadest category coverage may prefer a larger suite.
Your product? Our editors can test Postmill AI in depth and publish a review, labelled as paid · from $149/mo →
Postmill AI pricing
All 4 Postmill AI plans and prices →
Postmill AI fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $90/yr |
| AI content generation | Yes |
| AI content repurposing | Yes |
| Automatic publishing | Yes |
| Approval workflows | Yes |
| Social channels | 3 channels |
| Analytics depth | Advanced |
| Free trial | 30 days · card required |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Compliance & security | GDPR |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 166+ integrations: X, Instagram, LinkedIn, TikTok, YouTube, Discord … See all → |
| Pricing | Free plan · 30-day trial (source) |
| Website | postmill.ai |
| Facts checked | 20 Sep 2026 |
Postmill AI integrations
Postmill AI lists 166+ integrations on its own site — the 15 named here are the ones its pages call out.
- X
- TikTok
- YouTube
- Discord
- Telegram
- Mastodon
- WordPress
- Slack
- Matrix
- LINE
- OpenAI
- Anthropic
- Google Gemini
See all Postmill AI integrations →
Alternatives to Postmill AI
- Sprout SocialA broad social management suite for enterprise teams that need integrations and workflow depth.9.3
- BufferA flexible social media workspace with free entry, per-channel pricing, and strong team features.9.2
- HootsuiteA mature social suite with strong listening and reporting, but a high entry price.9.1
See all Postmill AI alternatives →
Also Ranked In
Postmill AI is ranked in 2 of our directories.
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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