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Top 8 Java event-streaming Projects
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Ingest real-time data from Kafka, Pulsar, or CDC sources like Postgresand MySQL, with built-in support for Debezium.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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debezium
Change data capture for a variety of databases. Please log issues at https://issues.redhat.com/browse/DBZ.
Project mention: Streaming Postgres Changes with Debezium and Kafka Connect: A Hands-On Tutorial | dev.to | 2025-05-05Debezium
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git clone https://github.com/obsidiandynamics/kafdrop.git
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eventmesh
EventMesh is a new generation serverless event middleware for building distributed event-driven applications.
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Project mention: Kafbat UI – Resurrected Kafka UI from the Original Core Team | news.ycombinator.com | 2025-04-15
We brought Kafbat UI back to life — a clean, modern UI for Apache Kafka (kafka-ui), originally built by the core team that created the widely used Kafka tools you may have seen before.
Key features:
Built by the original maintainers
Instant cluster introspection and topic browsing
Zero-config local startup (Docker support included)
Actively maintained & open source
GitHub: https://github.com/kafbat/kafka-ui
We’d love your feedback and contributions — let’s build the Kafka UI we all wanted back.
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zilla
🦎 A multi-protocol edge & service proxy. Seamlessly interface web apps, IoT clients, & microservices to Apache Kafka® via declaratively defined, stateless APIs.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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pulsar-recipes
A StreamNative library containing a collection of recipes that are implemented on top of the Pulsar client to provide higher-level functionality closer to the application domain.
Java event-streaming discussion
Java event-streaming related posts
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Every Database Will Support Iceberg — Here's Why
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Kafbat UI – Resurrected Kafka UI from the Original Core Team
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Show HN: Kafbat UI for Apache Kafka v1.2 is out
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Introducing Kafbat UI: Simplify Kafka Management with a Modern UI
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Show HN: Kafbat UI for Apache Kafka v1.1 is out
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Kafka-on-Pulsar Got Archived
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UI for Apache Kafka - An open-source tool for monitoring and managing Apache Kafka Clusters - v0.17 release
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A note from our sponsor - SaaSHub
www.saashub.com | 21 May 2025
Index
What are some of the best open-source event-streaming projects in Java? This list will help you:
# | Project | Stars |
---|---|---|
1 | Apache Pulsar | 14,601 |
2 | debezium | 11,397 |
3 | kafka-ui | 10,761 |
4 | kafdrop | 5,824 |
5 | eventmesh | 1,646 |
6 | kafka-ui | 1,072 |
7 | zilla | 585 |
8 | pulsar-recipes | 12 |