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78 stars written in Java
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A libre lightweight streaming front-end for Android.

Java 35,942 3,342 Updated Dec 16, 2025

Open Source Identity and Access Management For Modern Applications and Services

Java 31,747 7,901 Updated Dec 18, 2025

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

Java 26,147 2,373 Updated Dec 18, 2025

a fast, scalable, multi-language and extensible build system

Java 24,903 4,367 Updated Dec 18, 2025

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 24,448 4,718 Updated Dec 17, 2025

A Java serialization/deserialization library to convert Java Objects into JSON and back

Java 24,275 4,365 Updated Dec 17, 2025

Zipkin is a distributed tracing system

Java 17,370 3,105 Updated Aug 15, 2025

A high performance caching library for Java

Java 17,331 1,680 Updated Dec 15, 2025

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

Java 16,476 1,518 Updated Dec 18, 2025

Graphs for Everyone

Java 15,561 2,546 Updated Dec 18, 2025

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Java 14,780 630 Updated Dec 12, 2025

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

Java 14,750 3,521 Updated Dec 18, 2025

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

Java 14,551 925 Updated Dec 15, 2025

The ZAP by Checkmarx Core project

Java 14,540 2,484 Updated Dec 18, 2025

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

Java 14,196 1,246 Updated Dec 17, 2025

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

Java 13,958 2,434 Updated Dec 17, 2025

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

Java 12,672 3,786 Updated Dec 17, 2025

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

Java 12,190 2,804 Updated Dec 18, 2025

Access your entire server infrastructure from your local desktop

Java 12,145 469 Updated Dec 18, 2025

Open-Source Web UI for Apache Kafka Management

Java 11,705 1,355 Updated Jul 26, 2024

A free, secure and open source app for Android to manage your 2-step verification tokens.

Java 11,593 484 Updated Aug 3, 2025

A configuration as code language with rich validation and tooling.

Java 10,981 348 Updated Dec 15, 2025

Continuous Inspection

Java 10,110 2,137 Updated Dec 16, 2025

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.

Java 9,650 1,241 Updated Dec 15, 2025

Apache Cassandra®

Java 9,544 3,810 Updated Dec 18, 2025

Test Automation Made Simple

Java 8,750 2,005 Updated Dec 16, 2025

Apache Iceberg

Java 8,338 2,921 Updated Dec 17, 2025

Free and open log management

Java 7,913 1,097 Updated Dec 18, 2025

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

Java 7,813 2,154 Updated Aug 20, 2024

GoCD - Continuous Delivery server main repository

Java 7,344 981 Updated Dec 17, 2025
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