Java

SuperTokenssupertokens/supertokens-core

Open-source authentication and session management service, providing a self-hosted alternative to Auth0, Firebase Auth, and AWS Cognito.

Cryptomatorcryptomator/cryptomator

A multi-platform desktop application that provides client-side encryption for cloud storage files, ensuring privacy and control.

Logstashelastic/logstash

A server-side data processing pipeline that ingests, transforms, and ships logs and events from multiple sources.

Javaeclipse/vert.x

A toolkit for building reactive applications on the JVM with support for HTTP, TCP, and file system operations.

Deeplearning4jdeeplearning4j/deeplearning4j

A comprehensive JVM-based deep learning ecosystem for building, training, and deploying models with support for model import and distributed training.

zuulNetflix/zuul

Zuul is an L7 application gateway for dynamic routing, monitoring, resiliency, and security.

Druidapache/incubator-druid

A high-performance real-time analytics database designed for fast queries and ingest to reduce time to insight.

loggerorhanobut/logger

A simple, pretty, and powerful logging library for Android applications.

Pinpointnaver/pinpoint

An open-source APM tool for monitoring and tracing transactions in large-scale distributed Java, PHP, and Python applications.

ConductorNetflix/conductor

A microservices orchestration engine created by Netflix to manage workflows across distributed services.

aws-cdkaws/aws-cdk

An open-source framework for defining AWS cloud infrastructure using familiar programming languages.

Trinotrinodb/trino

A fast distributed SQL query engine for big data analytics, enabling interactive queries across diverse data sources.

Guicegoogle/guice

A lightweight dependency injection framework for Java 11+ that replaces factories and manual object instantiation.

EurekaNetflix/eureka

A RESTful service registry for AWS cloud environments, enabling service discovery, load balancing, and failover for middle-tier servers.

eurekaNetflix/eureka

A RESTful service registry for AWS cloud environments that enables service discovery, load balancing, and failover.

Facebook Stethofacebook/stetho

A debug bridge for Android apps that integrates Chrome Developer Tools for native debugging and network inspection.

Debezium (k)debezium/debezium

A low-latency platform for change data capture (CDC) that streams row-level changes from databases to applications.

Android View Animationsdaimajia/AndroidViewAnimations

A collection of cute and easy-to-use view animations for Android, inspired by iOS libraries and CSS animations.

Jedisxetorthio/jedis

A high-performance Java client for Redis designed for ease of use and comprehensive Redis feature support.

gRPC-javagrpc/grpc-java

The official Java implementation of gRPC, a high-performance, HTTP/2-based remote procedure call (RPC) framework.

DataHubdatahub-project/datahub

An open-source metadata platform for data discovery, governance, and observability across your entire data and AI stack.

LangChain4jlangchain4j/langchain4j

An open-source Java library that simplifies integrating LLMs into Java applications through a unified API and comprehensive toolbox.

webmagiccode4craft/webmagic

A scalable Java framework for building web crawlers, covering downloading, URL management, content extraction, and persistence.

WCDBTencent/wcdb

A cross-platform mobile database framework based on SQLite, offering ORM, encryption, and corruption recovery.

Realmrealm/realm-java

A mobile database for Android that replaces SQLite and ORMs with a fast, object-oriented, and sync-ready data layer.

Permission Dispatcherpermissions-dispatcher/PermissionsDispatcher

A declarative annotation-based library for handling Android runtime permissions in Kotlin and Java.

Android Annotationsexcilys/androidannotations

An open-source framework that speeds up Android development by simplifying code through annotations.

AndroidAnnotationsandroidannotations/androidannotations

An open-source framework that speeds up Android development by simplifying boilerplate code.

JavaPoetsquare/javapoet

A Java API for generating .java source files programmatically, useful for annotation processing and code generation.

autogoogle/auto

A collection of Java annotation processors that generate boilerplate code for factories, service providers, and immutable value types.

Knockoutknockout/knockout

A JavaScript MVVM library that creates rich, responsive UIs with automatic UI-data synchronization using observables and declarative bindings.

Activiti (k)Activiti/Activiti

A lightweight, open-source BPMN 2 process engine for Java, enabling workflow and business process automation.

sonarqubeSonarSource/sonarqube

An open-source platform for continuous code quality inspection and security analysis across 30+ programming languages.

Moshisquare/moshi

A modern JSON library for Kotlin and Java that makes it easy to parse JSON into classes and serialize objects to JSON.

Page View indicatorJakeWharton/ViewPagerIndicator

Paging indicator widgets compatible with Android ViewPager for improved content discoverability.

EasyPermissionsgooglesamples/easypermissions

A wrapper library to simplify Android M+ system permissions logic with annotations and callbacks.