APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product. Learn more →
Top 23 Java Kafka Projects
-
Provision managed resources (Postgres, MongoDB, Kafka, RabbitMQ, etc.) from DigitalOcean, Supabase, Scaleway, AWS, or Google Cloud. It doesn't really matter which; they all offer good SLAs.
-
AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
-
SpringBoot-Labs
一个涵盖六个专栏：Spring Boot 2.X、Spring Cloud、Spring Cloud Alibaba、Dubbo、分布式消息队列、分布式事务的仓库。希望胖友小手一抖，右上角来个 Star，感恩 1024
-
debezium
Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.
Project mention: 7 Free Tools for Data Pipeline Reconciliation and Cross-Source Validation | dev.to | 2026-05-13Debezium is an open-source CDC (change data capture) platform that streams database changes - inserts, updates, deletes - from supported databases (PostgreSQL, MySQL, MongoDB, SQL Server) to downstream consumers via Apache Kafka.
-
-
automq
Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.
-
Fable/Mythos is just garbage.
Situation: we maintain an internal Graylog 3.1.4 branch. We like 3.1.4 because the UI is probably peak design before their UI devs made a lot of changes that made the product more difficult and less usable. It's pretty old at this point, so we've backported a ton of CVEs
This use case is precisely what Fable would be good for. First thing we did was publicly push our fork: https://github.com/graylog2/graylog2-server . The big problem with our fork is that we haven't patched the JS side of it, we've mitigated the exploits with a proxy load balancer. For defense-in-depth, we should patch the root problems.
Despite specifically stating to Fable what the intentions are, and making the work public, it refuses to do anything basic. It could certainly reason about the intentions here.
There's a completely logical and simple explanation for the drama around Fable/Mythos: It can't do what Anthropic claims it can do. It's not nearly as good as the hype.
I have a feeling in reality they discovered internally that it was cheating on exams or they have a training loop leak. All of this is garbage is an attempt to save face right before an IPO (which conveniently, they announced they might delay).
-
Project mention: Flink CDC from the Trenches: Handling JSON in Pipelines with UDFs | dev.to | 2025-12-16
A critically important class that Flink CDC ships to perform type conversions internally is the DataTypeConverter, which you can find the source code for right here.
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
-
-
-
akhq
Kafka GUI for Apache Kafka to manage topics, topics data, consumers group, schema registry, connect and more...
-
cruise-control
Cruise-control is the first of its kind to fully automate the dynamic workload rebalance and self-healing of a Kafka cluster. It provides great value to Kafka users by simplifying the operation of Kafka clusters.
-
-
-
-
zilla
🦎 A lightweight, multi-protocol gateway for event-driven applications and AI agents. Expose and govern Kafka, MQTT, APIs, and MCP through one high-performance engine with shared routing, security, schema, and observability.
-
-
zerocode
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
-
-
-
-
tbmq
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
-
-
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Java Kafka discussion
Java Kafka related posts
-
[EN] Data Driven/Big Data Series #1: Apache Kafka and Elastic Stack Roles
-
Debezium vs Managed CDC: How to Actually Decide Between Build and Buy
-
Unlock Kafka Schemas with Karapace: A Hands-On Guide
-
A 10K-star milestone for Diskless Kafka
-
Made a Tool to Streams Changes from Microsoft SQL Server to Apache Kafka
-
7 Free Tools for Data Pipeline Reconciliation and Cross-Source Validation
-
How to Build a Dead Letter Queue System for Reliable Data Processing
-
A note from our sponsor - AppSignal
www.appsignal.com | 8 Oct 2026
Index
What are some of the best open-source Kafka projects in Java? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Apache Kafka | 33,900 |
| 2 | SpringBoot-Labs | 20,097 |
| 3 | debezium | 13,175 |
| 4 | kafka-ui | 12,242 |
| 5 | automq | 10,900 |
| 6 | graylog | 8,150 |
| 7 | flink-cdc | 6,480 |
| 8 | kafdrop | 6,155 |
| 9 | strimzi-kafka-operator | 5,947 |
| 10 | akhq | 3,858 |
| 11 | cruise-control | 3,044 |
| 12 | schema-registry | 2,467 |
| 13 | examples | 2,067 |
| 14 | secor | 1,858 |
| 15 | zilla | 1,716 |
| 16 | PretendYoureXyzzy | 1,278 |
| 17 | zerocode | 1,014 |
| 18 | testcontainers-spring-boot | 877 |
| 19 | Hermes | 871 |
| 20 | kafka-streams-course | 782 |
| 21 | tbmq | 769 |
| 22 | venice | 613 |
| 23 | my-moments | 548 |
Sponsored
Monitoring that respects your time & budget
APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
www.appsignal.com