Updated April 2026

Stream Processing & Real-Time Data

Best Stream Processing & Real-Time Data Tools

“Tools for ingesting, processing, and serving data in real-time. Event streaming platforms, stream processing engines, and streaming databases.”

14 tools reviewed

14 results

ksqlDB

SQL interface for stream processing on Apache Kafka

FreemiumSQLKafkaConfluent+1

Best for Best for Kafka-centric teams wanting SQL...

Apache Kafka

Distributed event streaming platform for high-throughput pipelines

Open SourceOpen SourceEvent streamingDistributed+1

Best for Best for teams building high-throughput ...

Confluent

Fully managed Kafka platform with stream processing

FreemiumManaged KafkaEnterpriseKsqlDB+2

Best for Best for enterprises wanting managed Kaf...

Apache Flink

Distributed stream processing engine for stateful computations

Open SourceOpen SourceStatefulExactly Once+2

Best for Best for teams needing complex stateful ...

Redpanda

Kafka-compatible streaming platform without ZooKeeper

FreemiumKafka CompatibleC++Low Latency+1

Best for Best for teams wanting Kafka compatibili...

Amazon Kinesis

Managed real-time streaming data service on AWS

PaidAWSManagedStreaming+1

Best for Best for AWS-native teams needing simple...

Spark Structured Streaming

Unified batch and streaming engine built on Apache Spark

Open SourceOpen SourceSparkMicro Batch+1

Best for Best for teams already on Spark wanting ...

Materialize

Streaming SQL database for incrementally maintained views

PaidStreaming databaseSQLMaterialized views+1

Best for Best for teams wanting real-time materia...

RisingWave

SQL-first streaming database for real-time analytics

FreemiumOpen SourceStreaming databaseSQL+1

Best for Best for SQL-first teams wanting streami...

Decodable

Managed Flink-based real-time data platform

PaidManaged FlinkSQLReal Time ETL+1

Best for Best for teams wanting managed Flink wit...