Listmonk is an open-source platform for managing newsletters, campaigns and mailing lists at scale. It gives organizations full control over their email system and makes it easy to run and automate email campaigns. Unlike many commercial email tools, Listmonk is completely open source. This allows organizations to customize campaigns exactly how they want, without relying on vendors or facing hidden limitations
Listmonk runs as a standalone application and is designed to handle large numbers of subscribers at once. Its backend uses PostgreSQL, ensuring reliable and stable email delivery even under heavy load. The flexible architecture makes it easy to scale up as your mailing list grows, making it suitable for both small organizations and large projects.
With Listmonk, users can easily add subscribers, create segments and send newsletters without much manual work. It also includes built-in features like A/B testing, personalized messages and real-time statistics. This gives organizations fast insights into how campaigns are performing and allows them to optimize results.
Being fully open source, Listmonk lets teams view, review and modify the code to fit their needs. With available APIs and integration options, it can easily connect to other systems like marketing automation tools or internal software. Administrators keep full control of their data, deciding how and where emails are stored and sent. At the same time, the open-source community contributes to improving the platform through updates, integrations and shared best practices.