listmonk
High performance, self-hosted newsletter and mailing list manager
About listmonk
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.
Pros & Cons
Pros
- Completely free with no subscriber or email limits
- Extremely lightweight single binary with minimal resource usage
- Full data ownership and privacy with self-hosting
- High-performance multi-threaded email sending
- Powerful SQL-based segmentation for advanced targeting
- Clean modern dashboard with intuitive campaign management
Cons
- Requires server administration and DevOps knowledge to self-host
- Limited marketing automation compared to SaaS alternatives like Mailchimp
- No built-in landing page or form builder
- Email deliverability management is your responsibility
- Fewer third-party integrations than commercial platforms
Key Features
High-Performance Email Queues
Multi-threaded, multi-SMTP email queues with configurable throughput and sliding window rate limiting
Subscriber Management
Import and manage subscribers via CSV or API with single or double opt-in and custom attributes
SQL-Based Segmentation
Create dynamic subscriber segments using powerful SQL expressions for precise targeting
Go Templating Engine
Build dynamic email templates with the Go templating language, supporting expressions, logic, and 100+ functions
Transactional Email API
Send arbitrary transactional messages to subscribers via pre-defined templates through a simple API
Campaign Analytics
Track opens, clicks, and bounces with aggregate stats and simple visualizations
Multi-Channel Messaging
Send messages via email, SMS, WhatsApp, or any medium through pluggable Messenger interfaces
Media Management
Manage campaign media assets with support for S3-compatible object storage
Role-Based Access Control
Multi-user access with granular roles, permissions, and API tokens for secure team collaboration
Single Binary Deployment
Ship as a single binary with zero external dependencies beyond PostgreSQL for easy self-hosting
Pricing
- Unlimited subscribers
- Unlimited campaigns
- Unlimited lists and segments
- Full API access
- Multi-SMTP support
- Transactional emails
- Analytics and reporting
- Role-based access control
- Community support
Best For
Developer Newsletters
Technical teams and developers who want full control over their newsletter infrastructure without SaaS costs
Privacy-Focused Email Marketing
Organizations that need to keep subscriber data on their own servers for compliance or privacy requirements
High-Volume Transactional Emails
Applications needing to send transactional messages like receipts, notifications, and alerts via API
Community and Open Source Projects
Open source projects and communities that need a free mailing list manager with modern features
Cost-Conscious Startups
Startups with large subscriber lists who want to avoid per-subscriber pricing from commercial email services
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