Open source kafka projects
Every project in the registry tagged kafka, ranked by real GitHub adoption.
Apache Kafka - A distributed event streaming platform
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.
S3-based serverless Kafka reinvented for cost efficiency
Event streaming platform for agentic AI. Continuously ingest, transform, and serve event streams in real time, at scale.
Open source metering and billing infrastructure for any pricing model
Flink CDC is a streaming data integration tool
Asynchronous Python framework for event-driven services. A thin client for Kafka, RabbitMQ, NATS, Redis and MQTT with full access to native broker features, plu
High-performance graph computing for scalable data analysis
Learn Agentic AI using Dapr Agentic Cloud Ascent (DACA) Design Pattern and Agent-Native Cloud Technologies: OpenAI Agents SDK, Memory, MCP, A2A, Knowledge Graph
The open source and enterprise-ready webhooks service 🦀
Fast, Simple and a cost effective tool to replicate data from Postgres to Data Warehouses, Queues and Storage
Surging is a micro-service engine that provides a lightweight, high-performance, modular RPC request pipeline. support Event-based Asynchronous Pattern and rea
Real-time usage metering and billing for AI companies
High-performance log ingestion and ETL engine
Open-source message stream built on Postgres
A lightweight stream processing library for Go
High-performance multi-data-source database client — ~30MB, AI & MCP ready, zero Electron bloat. | 高性能多数据源数据库客户端：约 30MB，AI 与 MCP 就绪，告别 Electron 膨胀。
Fast, scalable analytics infrastructure
OLake - Fastest Databases, Kafka & S3 Replication to Apache Iceberg with Table optimization (Called OLake Fusion). ⚡ Efficient, quick and scalable data ingestio
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Dat
工作流引擎对内提供单位/机关流程管理规则和内部业务流程的数字化落地实践；对外提供自动化地第三方业务驱动、接口接入和算法单元驱动能力。工作流引擎在提供底层驱动引擎的同时对全局透明监控、安全防御和国产化特色功能进行充分考虑，是内部流程管理和业务算法驱动的不二之选。
Zenko is the open source multi-cloud data controller: own and keep control of your data on any cloud.
Conduit streams data between data stores. Kafka Connect replacement. No JVM required.
Create low-latency, interactive user experiences for stateless microservices.
A blazing fast tool for building data pipelines: read, process and output events. Our community: https://t.me/file_d_community
ReplicaDB is open source tool for database replication, designed for efficiently transferring bulk data between relational and non-relational databases
Related tags
Frequently asked questions
How many open source kafka projects are there?
This registry tracks 27 projects tagged kafka, with 142,762 GitHub stars between them. The most-adopted is kafka at 34,117 stars.
Are these kafka projects free to use?
Yes — 26 of the 27 carry an explicit open-source licence across 6 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which kafka project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these kafka projects still maintained?
21 of the 27 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.