watermill
The premium Open Source alternative to Confluent
🎯 Best for:Go developers building scalable, message-driven microservices.
What is watermill?
A Go-native library that provides a standardized interface for message pub/sub and event streaming across multiple brokers. It simplifies the implementation of Sagas, CQRS, and distributed systems with built-in support for Kafka, RabbitMQ, and SQL.
Tech Stack
GoAutomation & Workflow
Why watermill?
- • Unified API for different brokers
- • Built-in middleware for retries
- • Strong typing and Go idiomatic
Limitations
- • Requires Go expertise
- • Manual infrastructure management
- • No built-in GUI for messages
3/5/2026
Last Update
492
Forks
100
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to watermill instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Confluent)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%