List of the Top 4 Event Stream Processing Software for Redpanda in 2025

Apache Kafka® is a powerful, open-source solution tailored for distributed streaming applications. It supports the expansion of production clusters to include up to a thousand brokers, enabling the management of trillions of messages each day and overseeing petabytes of data spread over hundreds of thousands of partitions. The architecture offers the capability to effortlessly scale storage and processing resources according to demand. Clusters can be extended across multiple availability zones or interconnected across various geographical locations, ensuring resilience and flexibility. Users can manipulate streams of events through diverse operations such as joins, aggregations, filters, and transformations, all while benefiting from event-time and exactly-once processing assurances. Kafka also includes a Connect interface that facilitates seamless integration with a wide array of event sources and sinks, including but not limited to Postgres, JMS, Elasticsearch, and AWS S3. Furthermore, it allows for the reading, writing, and processing of event streams using numerous programming languages, catering to a broad spectrum of development requirements. This adaptability, combined with its scalability, solidifies Kafka's position as a premier choice for organizations aiming to leverage real-time data streams efficiently. With its extensive ecosystem and community support, Kafka continues to evolve, addressing the needs of modern data-driven enterprises.

DeltaStream serves as a comprehensive serverless streaming processing platform that works effortlessly with various streaming storage solutions. Envision it as a computational layer that enhances your streaming storage capabilities. The platform delivers both streaming databases and analytics, along with a suite of tools that facilitate the management, processing, safeguarding, and sharing of streaming data in a cohesive manner. Equipped with a SQL-based interface, DeltaStream simplifies the creation of stream processing applications, such as streaming pipelines, and harnesses the power of Apache Flink, a versatile stream processing engine. However, DeltaStream transcends being merely a query-processing layer above systems like Kafka or Kinesis; it introduces relational database principles into the realm of data streaming, incorporating features like namespacing and role-based access control. This enables users to securely access and manipulate their streaming data, irrespective of its storage location, thereby enhancing the overall data management experience. With its robust architecture, DeltaStream not only streamlines data workflows but also fosters a more secure and efficient environment for handling real-time data streams.

A versatile Python framework crafted for the development of real-time intelligent applications, the construction of data pipelines, and the seamless integration of AI and machine learning models. This framework enhances scalability, enabling developers to efficiently manage increasing workloads and complex processes.

Scale from zero to millions of events each second with Arroyo, which is provided as a single, efficient binary. It can be executed locally on MacOS or Linux for development needs and can be seamlessly deployed into production via Docker or Kubernetes. Arroyo offers a groundbreaking approach to stream processing that prioritizes the ease of real-time operations over conventional batch processing methods. Designed from the ground up, Arroyo enables anyone with a basic knowledge of SQL to construct reliable, efficient, and precise streaming pipelines. This capability allows data scientists and engineers to build robust real-time applications, models, and dashboards without requiring a specialized team focused on streaming. Users can easily perform operations such as transformations, filtering, aggregation, and data stream joining merely by writing SQL, achieving results in less than a second. Additionally, your streaming pipelines are insulated from triggering alerts simply due to Kubernetes deciding to reschedule your pods. With its ability to function in modern, elastic cloud environments, Arroyo caters to a range of setups from simple container runtimes like Fargate to large-scale distributed systems managed with Kubernetes. This adaptability makes Arroyo the perfect option for organizations aiming to refine their streaming data workflows, ensuring that they can efficiently handle the complexities of real-time data processing. Moreover, Arroyo’s user-friendly design helps organizations streamline their operations significantly, leading to an overall increase in productivity and innovation.