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Top 19 Java Flink Projects
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Project mention: What is Apache Flink? Exploring Its Open Source Business Model, Funding, and Community | dev.to | 2025-05-10
Continuous Learning: Leverage online tutorials from the official Flink website and attend webinars for deeper insights.
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InfluxDB
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Zeppelin
Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.
Project mention: 📊 Visualise Presto Queries with Apache Zeppelin: A Hands-On Guide | dev.to | 2025-05-12In the previous article, we explored the installation of Presto. Building on that foundation, it's time to take your data exploration one step further by integrating Presto with Apache Zeppelin, a powerful web-based notebook that allows interactive data analytics.
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Project mention: flink-cdc VS cocoindex - a user suggested alternative | libhunt.com/r/flink-cdc | 2025-04-01
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paimon
Apache Paimon is a lake format that enables building a Realtime Lakehouse Architecture with Flink and Spark for both streaming and batch operations.
Project mention: Apache iceberg the Hadoop of the modern-data-stack? | news.ycombinator.com | 2025-03-06 -
LakeSoul
LakeSoul is an end-to-end, realtime and cloud native Lakehouse framework with fast data ingestion, concurrent update and incremental data analytics on cloud storages for both BI and AI applications.
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bitsail
BitSail is a distributed high-performance data integration engine which supports batch, streaming and incremental scenarios. BitSail is widely used to synchronize hundreds of trillions of data every day.
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SaaSHub
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Project mention: Major Technologies Worth Learning in 2025 for Data Professionals | dev.to | 2024-12-07
With the explosion of IoT devices and demand for instant insights, real-time analytics is no longer optional. Technologies like Apache Kafka, Apache Flink, and Redpanda are at the forefront of this movement. Learning these platforms will help you design systems that process streaming data efficiently.
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flink-http-connector
Http Connector for Apache Flink. Provides sources and sinks for Datastream , Table and SQL APIs.
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hadoopcryptoledger
Hadoop Crypto Ledger - Analyzing CryptoLedgers, such as Bitcoin Blockchain, on Big Data platforms, such as Hadoop/Spark/Flink/Hive
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scotty-window-processor
This repository provides Scotty, a framework for efficient window aggregations for out-of-order Stream Processing.
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examples
🌟 Examples of use cases that utilize Decodable, as well as demos for related open-source projects such as Apache Flink, Debezium, and Postgres. (by decodableco)
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amazon-managed-service-for-apache-flink-examples
Collection of code examples for Amazon Managed Service for Apache Flink
Project mention: Using scheduled queries with Amazon Timestream for LiveAnalytics | dev.to | 2025-03-16☝️Note: While I won't go into detail in this post, it's worth noting that a common way to reduce writes to the raw table is by pre-aggregating data in small batches, such as using a 5-minute tumbling window. This groups events into fixed, non-overlapping intervals before writing, effectively lowering the write frequency. Managed Apache Flink can help achieve this.
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cratedb-flink-jobs
This repository accompanies the article "Build a data ingestion pipeline using Kafka, Flink, and CrateDB" and the "CrateDB Community Day #2".
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SaaSHub
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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 Flink discussion
Java Flink related posts
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What is Apache Flink? Exploring Its Open Source Business Model, Funding, and Community
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Is RisingWave the Next Apache Flink?
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Exploring the Power and Community Behind Apache Flink
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Serverless Data Processing on AWS : AWS Project
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Streaming Data Alchemy: Apache Kafka Streams Meet Spring Boot
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Paimon: Realtime Lakehouse Architecture with Flink and Spark
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Databricks to Buy Data-Management Startup Tabular
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A note from our sponsor - SaaSHub
www.saashub.com | 13 May 2025
Index
What are some of the best open-source Flink projects in Java? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Apache Flink | 24,836 |
| 2 | Zeppelin | 6,480 |
| 3 | flink-cdc | 6,051 |
| 4 | paimon | 2,775 |
| 5 | LakeSoul | 2,743 |
| 6 | SREWorks | 1,867 |
| 7 | bitsail | 1,652 |
| 8 | flink-kubernetes-operator | 876 |
| 9 | yauaa | 822 |
| 10 | doris-flink-connector | 344 |
| 11 | flink-ml | 318 |
| 12 | flink-faker | 220 |
| 13 | flink-remote-shuffle | 189 |
| 14 | flink-http-connector | 179 |
| 15 | hadoopcryptoledger | 139 |
| 16 | scotty-window-processor | 76 |
| 17 | examples | 74 |
| 18 | amazon-managed-service-for-apache-flink-examples | 56 |
| 19 | cratedb-flink-jobs | 5 |
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