Java

AREG SDKaregtech/areg-sdk

A C++ middleware and framework for building distributed service-oriented systems with automated threading, IPC, and location-transparent Object RPC.

Apache Apexapache/apex-core

A unified platform for big data stream and batch processing on Hadoop YARN with enterprise-grade operability.

Family Accounting Toolnymanjens/facto

A self-hosted tool for tracking family transactions, calculating internal debts, and analyzing household expenses.

Cloudopt Nextcloudoptlab/cloudopt-next

A lightweight, modern JVM-based web framework built on Vert.x for Java and Kotlin applications.

Android-gif-encodernbadal/android-gif-encoder

A pure Java animated GIF encoder for Android that doesn't require native code, with dirty rectangle support.

react-native-wheel-pickerlesliesam/react-native-wheel-picker

A cross-platform wheel picker component for React Native that provides a consistent iOS-style UI on both iOS and Android.

Philadelphiaparitytrading/philadelphia

A fast, low-latency Financial Information Exchange (FIX) protocol library for the JVM.

java-rust-exampledrrb/java-rust-example

An example project demonstrating how to call Rust code from Java using JNA, with examples of data exchange and callbacks.

neo4j-java-driverneo4j/neo4j-java-driver

Official Java driver for Neo4j, enabling Java applications to connect and interact with Neo4j graph databases via the Bolt protocol.

MagicalCamerafabian7593/MagicalCamera

An Android library for easy camera photo capture, gallery selection, image processing, and photo saving with facial recognition and EXIF data.

Riptidezalando/riptide

A next-generation HTTP client for Spring that implements client-side response routing, embracing HTTP's full power.

Speech Recognitionrxlabz/speech_recognition

A Flutter plugin for speech recognition on iOS and Android using native APIs.

amazon-kinesis-scaling-utilsawslabs/amazon-kinesis-scaling-utils

A utility for scaling Amazon Kinesis Streams manually or automatically, similar to EC2 Auto Scaling.

statsd-jvm-profileretsy/statsd-jvm-profiler

A JVM agent profiler that sends memory, CPU tracing, and CPU load metrics to StatsD, InfluxDB, and other backends.

jstachiojstachio/jstachio

A type-safe, statically compiled Mustache templating engine for Java that generates readable Java source code.

amazon-kinesis-connectorsawslabs/amazon-kinesis-connectors

A Java library for building data pipelines that connect Amazon Kinesis streams to AWS and non-AWS services like DynamoDB, Redshift, S3, and Elasticsearch.

Hibernate OGMhibernate/hibernate-ogm

Hibernate OGM enables JPA-based domain model persistence for NoSQL datastores using familiar Hibernate APIs.

Quizmasternymanjens/quizmaster

A web application for hosting interactive quizzes with multiple question types, configurable via YAML.

HappyDnsqiniu/happy-dns-android

A flexible DNS library for Android supporting UDP, DoH, HTTPDNS, and custom hosts.

CraftBookEngineHub/CraftBook

A modular Minecraft server plugin adding redstone ICs, elevators, custom crafting, pipes, and many other gameplay enhancements.

mypy-pycharm-plugindropbox/mypy-PyCharm-plugin

A PyCharm plugin that runs mypy type checking across your entire Python project and provides navigation between errors.

htm.javanumenta/htm.java

An official Java port of Numenta's Hierarchical Temporal Memory (HTM) library for machine intelligence and anomaly detection.

sql-to-mongo-db-query-convertervincentrussell/sql-to-mongo-db-query-converter

A Java library that converts SQL queries into MongoDB query documents and aggregation pipelines.

XMLUnitxmlunit/xmlunit

A Java library for testing XML output via XPath, schema validation, and document comparisons.

JsonSurferjsurfer/JsonSurfer

A streaming JsonPath processor for Java that extracts JSON data without loading entire documents into memory.

Clinical Quality Languagecqframework/clinical_quality_language

An HL7 standard and tooling for expressing clinical knowledge in Clinical Decision Support (CDS) and Clinical Quality Measurement (CQM).

ElasticProgressBarmichelelacorte/ElasticProgressBar

An Android library providing an animated, customizable progress bar with elastic effects for loading states.

Hivemallapache/incubator-hivemall

A scalable machine learning library that runs on Apache Hive, Spark, and Pig for distributed ML directly in SQL.

react-native-xmppaksonov/react-native-xmpp

A React Native library providing native XMPP client support for iOS and Android applications.

liblinear-javabwaldvogel/liblinear-java

A Java port of LIBLINEAR for large-scale regularized linear classification, regression, and outlier detection.

SmoothieMapOpenHFT/SmoothieMap

A Java Map implementation with the lowest memory usage and no rehash latency spikes, using extendible hashing.

NbvcxzGoSimpleLLC/nbvcxz

A Java library for advanced password strength estimation, inspired by zxcvbn, with internationalization and custom dictionaries.

api-gateway-secure-pet-storeawslabs/api-gateway-secure-pet-store

A sample Java application demonstrating secure API access using AWS Lambda, API Gateway, Cognito, and DynamoDB.

GMavenPlusgroovy/GMavenPlus

A Maven plugin for integrating Groovy into Maven projects, enabling mixed Java/Groovy builds.

amazon-kinesis-client-nodejsawslabs/amazon-kinesis-client-nodejs

A Node.js interface to the Amazon Kinesis Client Library for building distributed applications that process streaming data at scale.

libwally-coreElementsProject/libwally-core

A cross-platform library of cryptographic primitives for building cryptocurrency wallets.