Open Source cold email outreach
Build and manage automated email campaigns with our completely free, open-source platform. Self-hosted, no vendor lock-in, and deploy anywhere you want.

Features
Everything you need to scale outreach
100% free and open source. Built for developers and marketers who want complete control over their email campaigns.
Deploy Anywhere
- Host on Vercel, AWS, or any Node.js platform. Works with PostgreSQL databases.
Smart Sequences
- Create multi-step campaigns with conditional logic, personalization, and intelligent follow-ups.
Real-time Analytics
- Track opens, clicks, replies, and conversions with detailed performance insights.
Privacy First
- Your data stays in your infrastructure. No vendor lock-in, complete data ownership.
Open Source
Completely Free
No hidden costs, no subscription fees, no vendor lock-in. ColdMail is 100% open source and always will be.
Zero Cost
No license fees, no subscription costs, completely free to use.
Self-Hosted
Deploy on your own infrastructure, keep full control of your data.
Open Source
AGPL licensed, contribute to the project, modify as needed.
No Vendor Lock-in
Your data, your infrastructure, your control.