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Best Stream Processing Engines Tools

Frameworks for real-time processing of streaming data and events.

9 open-source projects10+ SaaS products

Top Open Source Stream Processing Engines platforms

View all 9 open-source options
Pathway logo

Pathway

Unified Python framework for real‑time, batch, and LLM pipelines

Stream Processing Engines
Stars
59,476
License
—
Last commit
20 hours ago
PythonActive
Apache Spark logo

Apache Spark

Fast, unified engine for large-scale data analytics

ETL & Data Integration+1
Stars
42,941
License
Apache-2.0
Last commit
7 hours ago
ScalaActive
Apache Flink logo

Apache Flink

Unified engine for high-throughput, low-latency stream and batch processing

Stream Processing Engines
Stars
25,838
License
Apache-2.0
Last commit
1 day ago
JavaActive
RisingWave logo

RisingWave

Real-time streaming platform with native Iceberg lakehouse support

Stream Processing Engines
Stars
8,842
License
Apache-2.0
Last commit
16 hours ago
RustActive
Redpanda Connect logo

Redpanda Connect

High-performance resilient stream processor with declarative pipelines

Stream Processing Engines
Stars
8,602
License
—
Last commit
17 hours ago
GoActive
Apache Beam logo

Apache Beam

Unified model for batch and streaming data pipelines

Stream Processing Engines
Stars
8,508
License
Apache-2.0
Last commit
23 hours ago
JavaActive
Most starred project
Pathway
59,476★

Unified Python framework for real‑time, batch, and LLM pipelines

Recently updated
Apache Storm
7 hours ago

Apache Storm delivers scalable, fault-tolerant real-time computation across any language, enabling sub-second analytics and event-driven pipelines for enterprises with robust operational support.

Dominant language
Java • 4 projects

Expect a strong Java presence among maintained projects.

Leading Stream Processing Engines SaaS platforms

View all 10+ SaaS options
Aiven for Apache Flink logo

Aiven for Apache Flink

Fully managed Apache Flink service by Aiven.

Stream Processing Engines
Alternatives tracked
9 alternatives
Amazon Managed Service for Apache Flink logo

Amazon Managed Service for Apache Flink

Serverless Apache Flink for real-time stream processing on AWS.

Stream Processing Engines
Alternatives tracked
9 alternatives
Azure Stream Analytics logo

Azure Stream Analytics

Serverless real-time analytics with SQL on streams.

Stream Processing Engines
Alternatives tracked
9 alternatives
Confluent Cloud logo

Confluent Cloud

Fully managed Apache Kafka service for real-time event streaming and data integration

Stream Processing Engines
Alternatives tracked
9 alternatives
Decodable logo

Decodable

Managed stream processing platform built on Apache Flink.

Stream Processing Engines
Alternatives tracked
9 alternatives
Google Cloud Dataflow logo

Google Cloud Dataflow

Fully managed Apache Beam service for batch and streaming pipelines.

Stream Processing Engines
Alternatives tracked
9 alternatives
Most compared product
Aiven for Apache Flink
9 open-source alternatives

Spin up Flink clusters with a web SQL editor and integrations to build streaming apps and analytics quickly.

Leading hosted platforms
Aiven for Apache Flink, Amazon Managed Service for Apache Flink, Azure Stream Analytics

Frequently replaced when teams want private deployments and lower TCO.