OpenMailer
The premium Open Source alternative to ConvertKit
🎯 Best for:Developers building custom newsletter solutions.
What is OpenMailer?
A self-hosted newsletter platform replacing ConvertKit and Beehiiv using a modern Next.js architecture. It provides a lightweight interface for managing subscribers and dispatching campaigns without the overhead of enterprise marketing suites.
Tech Stack
TypeScriptMarketing & SEO
Why OpenMailer?
- • Modern React/Next.js stack
- • No monthly subscription costs
- • Lightweight codebase
Limitations
- • Requires Vercel/Node hosting
- • Fewer pre-made templates
- • Manual SMTP configuration
2/16/2026
Last Update
14
Forks
5
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to OpenMailer instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on ConvertKit)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%