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Starred repositories

44 stars written in Java
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Free and Open Source, Distributed, RESTful Search Engine

Java 75,972 25,787 Updated Jan 26, 2026

Free universal database tool and SQL client

Java 48,403 4,012 Updated Jan 26, 2026

Learn System Design concepts and prepare for interviews using free resources.

Java 29,331 6,722 Updated Jan 11, 2026

APM, Application Performance Monitoring System

Java 24,693 6,630 Updated Jan 26, 2026

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

Java 24,460 4,716 Updated Dec 17, 2025

JDK main-line development https://openjdk.org/projects/jdk

Java 22,412 6,234 Updated Jan 26, 2026

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

Java 21,432 1,766 Updated Jan 26, 2026

Learn Low Level Design (LLD) and prepare for interviews using free resources.

Java 21,384 5,268 Updated Jan 12, 2026

The official home of the Presto distributed SQL query engine for big data

Java 16,634 5,514 Updated Jan 26, 2026

QuestDB is a high performance, open-source, time-series database

Java 16,616 1,530 Updated Jan 26, 2026

Awesome LeetCode resources to learn Data Structures and Algorithms and prepare for Coding Interviews.

Java 15,472 3,357 Updated Nov 25, 2025

Apache Doris is an easy-to-use, high performance and unified analytics database.

Java 14,930 3,692 Updated Jan 26, 2026

Logstash - transport and process your logs, events, or other data

Java 14,766 3,522 Updated Jan 26, 2026

Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.

Java 13,981 2,432 Updated Jan 23, 2026

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

Java 12,718 1,690 Updated Dec 1, 2025

AWS Service registry for resilient mid-tier load balancing and failover.

Java 12,694 3,788 Updated Jan 23, 2026

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Java 12,328 2,830 Updated Jan 26, 2026

🔎 Open source distributed and RESTful search engine.

Java 12,277 2,377 Updated Jan 26, 2026

Apache Cassandra®

Java 9,597 3,824 Updated Jan 26, 2026

Apache Beam is a unified programming model for Batch and Streaming data processing.

Java 8,459 4,486 Updated Jan 26, 2026

Flink CDC is a streaming data integration tool

Java 6,333 2,117 Updated Jan 26, 2026

Apache NiFi

Java 5,930 2,925 Updated Jan 23, 2026

JanusGraph: an open-source, distributed graph database

Java 5,707 1,209 Updated Nov 21, 2025

Main Liquibase Source

Java 5,401 1,936 Updated Jan 26, 2026

Angry IP Scanner - fast and friendly network scanner

Java 4,795 792 Updated Dec 1, 2025

Ribbon is a Inter Process Communication (remote procedure calls) library with built in software load balancers. The primary usage model involves REST calls with various serialization scheme support.

Java 4,623 1,239 Updated Dec 17, 2025

Azkaban workflow manager.

Java 4,518 1,581 Updated Jul 3, 2024

Serve, optimize and scale PyTorch models in production

Java 4,358 888 Updated Aug 6, 2025

Maxwell's daemon, a mysql-to-json kafka producer

Java 4,229 1,032 Updated Dec 29, 2025

Dependency-Track is an intelligent Component Analysis platform that allows organizations to identify and reduce risk in the software supply chain.

Java 3,540 708 Updated Jan 26, 2026
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