
High performance, self-hosted newsletter and mailing list manager
listmonk is a free and open source self-hosted newsletter, mailing list manager, and transactional mail platform. Packed into a single binary written in Go and backed by PostgreSQL, it delivers high-throughput email sending with multi-threaded queues, advanced subscriber segmentation, and a modern admin dashboard.
Multi-threaded, multi-SMTP email queues with configurable throughput and sliding window rate limiting
Import and manage subscribers via CSV or API with single or double opt-in and custom attributes
Create dynamic subscriber segments using powerful SQL expressions for precise targeting
Build dynamic email templates with the Go templating language, supporting expressions, logic, and 100+ functions
Send arbitrary transactional messages to subscribers via pre-defined templates through a simple API
Track opens, clicks, and bounces with aggregate stats and simple visualizations
Send messages via email, SMS, WhatsApp, or any medium through pluggable Messenger interfaces
Technical teams and developers who want full control over their newsletter infrastructure without SaaS costs
Organizations that need to keep subscriber data on their own servers for compliance or privacy requirements
Applications needing to send transactional messages like receipts, notifications, and alerts via API
Open source projects and communities that need a free mailing list manager with modern features
Best for technical teams who want unlimited email marketing with zero software costs — the most economical option at any scale.
Best self-hosted newsletter platform for cheap hardware — replaces expensive email SaaS with a Go binary that handles millions of sends on a $5 VPS.
Manage campaign media assets with support for S3-compatible object storage
Multi-user access with granular roles, permissions, and API tokens for secure team collaboration
Ship as a single binary with zero external dependencies beyond PostgreSQL for easy self-hosting
Startups with large subscriber lists who want to avoid per-subscriber pricing from commercial email services

AI-powered SQL client that turns natural language into database queries