Open Source Notification Tools
Notification systems deliver timely messages when events need attention, from account updates and workflow changes to service outages and security alerts. They help applications and teams communicate across email, mobile devices, chat, and other channels, while supporting routing, prioritization, and delivery tracking. Well-designed notifications reduce missed information without overwhelming recipients with irrelevant or repeated messages.
Open source tools in this area include messaging services, libraries for adding notifications to applications, and automation tools that send alerts in response to events. When choosing one, consider supported channels, integration options, delivery guarantees, privacy, deployment requirements, and how actively it is maintained. Review the license and community documentation, too. These tools are useful for developers, operators, and organizations that need to build, manage, or self-host notification workflows.
4 repositories · updated October 3, 2026

LoggiFly: Get Alerts from Docker Container Logs
LoggiFly watches Docker container logs for keywords and regex patterns, then sends alerts through Ntfy or Apprise. It suits self-hosters and operators who need to react to errors, security events, or custom application behavior.

ntfy: Send Push Notifications with HTTP Requests
ntfy is an HTTP-based publish-subscribe notification service for sending messages to phones and desktops. Publish from scripts with PUT or POST, use the hosted service, or run your own instance.

Mailroom: A Go Framework for Event-Driven User Notifications
Mailroom is a robust Go framework developed by SeatGeek, designed to streamline the creation, routing, and delivery of user notifications. It processes events from external systems, transforming them into tailored notifications for various transports. This flexible and extensible tool simplifies complex notification workflows, ensuring timely and relevant communication.

apprise: Send Notifications Across Many Services
Apprise is a Python library and CLI for sending alerts through a shared interface to a wide range of notification services. It suits developers and administrators who want one integration for apps, scripts, and infrastructure.