Open Source Messaging & Event Streaming Tools
A curated collection of the best open source systems for handling messages, events, and real-time data streams.
S3-based serverless Kafka reinvented for cost efficiency
Stars
10,902Last commit
2 days agoLicense
Apache-2.0
AutoMQ is a serverless Kafka alternative built on S3 that offers 10x cost savings, easy scalability, and full Kafka compatibility.
Open Source Alternative to:
Webhook delivery platform with retries, security, and a portal
Stars
3,425Last commit
1 day agoLicense
MIT
Add customer-facing webhooks to your product without building the infrastructure. Handles retries, signatures, multi-tenancy, filtering, and monitoring at scale.
Open Source Alternative to:
Open-source message stream built on Postgres
Stars
2,209Last commit
7 months agoLicense
MIT
Sequin offers a feature-rich messaging system with a simple HTTP API, providing RabbitMQ-like functionality without adding complexity to your stack.
Open Source Alternative to:
Open-source webhooks for seamless integrations
Stars
1,491Last commit
11 hours agoLicense
SSPL-1.0
Self-hosted webhook solution for effortless event-driven communication between applications, enhancing system interoperability and automation.
Open Source Alternative to:
Inspect, debug, and replay BullMQ queues visually
Stars
449Last commit
4 months agoLicense
MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.
Open Source Alternative to:
Real-time event tracking and response for tech products
Stars
476Last commit
2 days agoLicense
AGPL-3.0
Track critical events, receive instant notifications, and respond to product activities with customizable webhooks and action buttons
Open Source Alternative to:
InfluxDB – The purpose-built time series platform for high-velocity ingestion and real-time queries at scale.
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