The newsletter platform that respects your readers
AI-native email newsletters for creators and small businesses. No lock-in, no commission, no complexity.
Free up to 500 subscribers. No credit card required.
Everything you need to grow
Powerful tools that make newsletter creation effortless
AI-native from day one
Subject line generation, send time optimization, and content suggestions powered by AI.
You own your audience
Full subscriber data export anytime. No lock-in, no platform risk.
Beautiful emails, zero effort
Drag-and-drop block editor with 12 block types and 10 templates. Mobile-optimized and inbox-previewed.
See it in action
A clean, powerful dashboard that puts you in control of your newsletter.
Newsletters on auto-pilot
Generate entire newsletters from your app data, personalize per subscriber, and let AI create hero images — all via API or on a schedule.
AI Content Generation
Send data + guidance, get a complete newsletter. Subject line, sections, inline-styled HTML — all generated by AI.
AI Hero Images
Auto-generated header images matching your content. Gemini or Replicate Flux — zero design skills needed.
Per-Subscriber Personalization
Each reader gets content tailored to their tags, engagement, and app data. Merge tags + AI rewriting at $0.001/email.
Auto-Pilot Mode
Set a schedule, AI generates and sends. Daily, weekly, monthly — with optional human approval before sending.
AI Block Editor
12 block types with drag-drop. Say "add a metrics section" and AI creates it. Renders to email-safe HTML.
AI Drip Sequences
Describe your onboarding flow, AI generates the entire sequence — emails, delays, conditions, and CTAs.
Everything you need to run a newsletter
From automation to analytics, enterprise security to embeddable widgets.
Automated email series with delays and conditions
Test subjects and content, auto-pick winner
0-100 score per subscriber based on behavior
See which links get clicked and where
MRR, LTV, churn, revenue per email
Optimal send time per subscriber
Pre-built responsive email templates
12 event types with retry + HMAC signing
Auto-digest from any RSS feed
Rating, NPS, multiple choice in emails
Subscriber referrals with milestones
Public page per newsletter with signup
Full API coverage from your app
Webhook-based automation triggers
Enterprise auth with Okta, Azure AD
Restrict API access by IP/CIDR
Why choose NewsletterOS
| Feature | NewsletterOS | Mailchimp | ConvertKit | Beehiiv | Ghost |
|---|---|---|---|---|---|
| AI content generation | ✓ | — | — | — | — |
| AI hero images | ✓ | — | — | — | — |
| Per-subscriber AI personalization | ✓ | — | — | — | — |
| Auto-pilot mode | ✓ | — | — | — | — |
| External API for apps | ✓ | — | ✓ | — | — |
| Merge tags & conditionals | ✓ | ✓ | ✓ | ✓ | ✓ |
| Segment targeting | ✓ | ✓ | ✓ | ✓ | ✓ |
| Drip sequences | ✓ | ✓ | ✓ | — | — |
| A/B testing | ✓ | ✓ | ✓ | ✓ | — |
| Subscriber engagement scoring | ✓ | ✓ | ✓ | — | — |
| Click heatmaps | ✓ | ✓ | — | — | — |
| Revenue analytics | ✓ | ✓ | ✓ | ✓ | ✓ |
| Embeddable signup widget | ✓ | — | ✓ | ✓ | — |
| RSS-to-newsletter | ✓ | — | — | ✓ | — |
| Subscriber surveys/polls | ✓ | — | — | — | — |
| Referral program | ✓ | — | — | ✓ | — |
| SSO/SAML | ✓ | ✓ | — | — | — |
| Audit log | ✓ | ✓ | — | — | — |
| JavaScript SDK | ✓ | — | — | ✓ | — |
| Self-hostable | ✓ | — | — | — | ✓ |
| Free tier | 500 subs | 500 subs | 1000 subs | 1000 subs | self-host |
| No commission on paid newsletters | ✓ | — | ✓ | — | ✓ |
| Open source | ✓ | — | — | — | — |
Frequently asked questions
How does AI content generation work?
Your app sends data and guidance via our API. Our AI (Gemini/Claude) generates a complete newsletter with subject line, sections, and optional hero image. You can review before sending or enable auto-pilot.
Is the AI personalization expensive?
No — we use Gemini Flash which costs ~$0.001 per email. A 10,000 subscriber list costs about $10/month for full AI personalization.
Can I use my own email provider?
NewsletterOS sends through Resend by default, and can use self-hosted MailStack instead.
Do I own my subscriber data?
Yes, 100%. Export anytime as CSV. No lock-in, no commission on paid subscriptions. Self-host if you want complete control.
What about GDPR?
We support subscriber export, deletion, and unsubscribe management. All data stored in your own PostgreSQL database. Full GDPR compliance built-in.
Can my app trigger newsletters automatically?
Yes — use POST /api/v1/generate with auto_send=true and approval_required=false for fully automated emails. Or keep approval_required=true (default) to review before sending.
What integrations do you support?
Webhooks (12 event types with retry and HMAC signing), Zapier/Make via webhook triggers, JavaScript SDK for full API coverage, RSS feeds for auto-digest newsletters, and custom domains with DKIM/SPF setup.
Is NewsletterOS suitable for enterprise?
Yes — we offer SSO/SAML + OIDC (Okta, Azure AD), IP allowlisting, audit log with CSV export, SLA tiers, and team management with roles. Contact us for enterprise pricing.
Ship newsletters your readers forward
Free up to 500 subscribers. No credit card required. AI-powered subject lines included.
Open rates you can trust. Native automation. No commission.