Apache Kafka

Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

Kafka API compatible, without ZooKeeper or a JVM.

Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

A Kafka fork that keeps partitions in S3-compatible object storage, with the same protocol and tools.

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

Streaming and messaging with transactional and delayed messages, through its own protocol and clients.

Apache Pulsar - distributed pub-sub messaging system

Streaming and pub/sub with storage separated from the brokers, multi-tenant.

High-Performance server for NATS.io, the cloud and edge native messaging system.

Durable streams with JetStream, without Kafka's protocol.

Open source RabbitMQ: core server and tier 1 (built-in) plugins

A message broker first; streams add a replayable, Kafka-like log.

Apache Iggy: Hyper-Efficient Message Streaming at Laser Speed

Persistent message streaming in Rust over TCP, QUIC and HTTP, with its own protocol and clients.

🦀 event stream processing for developers to collect and transform data in motion to power responsive data intensive applications.

Streaming in Rust with WebAssembly transforms, with its own protocol and clients.

Other tools in Event streaming