Free and Open Source, Distributed, RESTful Search Engine

A type-safe HTTP client for Android and the JVM

Open-source IoT Platform - Device management, data collection, processing and visualization.

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

Powerful and flexible library for loading, caching and displaying images on Android.

Access your entire server infrastructure from your local desktop

Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

Android library (AAR). Highly configurable, easily extendable deep zoom view for displaying huge images without loss of detail. Perfect for photo galleries, maps, building plans etc.

The Physical Web: walk up and use anything

Speech and Vision Based Intelligent Personal Assistant

Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, adaptive bitrate, transcoding & scaling

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

[DEPRECATED] Android floating action button

Java HTTP Request Library

A p2p, secure file storage, social network and application protocol

Official FBReaderJ project repository

ViroReact is the leading library for building AR and VR experiences and applications using React Native and Expo.

An app that lets you browse the web over SMS

Android form edit text is an extension of EditText that brings data validation facilities to the edittext.

Vector map library and writer - running on Android and Desktop.

A fast and secure browser for standalone virtual-reality and augmented-reality headsets.

converter that creates three-dimensional models of the world from OpenStreetMap data

Streamline Your Telegram Searches: Find Channels, Groups, and Chat History Effortlessly.

configurable OSM offline router with elevation awareness, Java + Android

Open In-App Billing for Google Play, SlideMe, Amazon Store, Nokia Store, Samsung Apps, Yandex.Store, Appland, Aptoide, AppMall and Fortumo.

Android OAuth Client (android-oauth-client) is a library that helps to easily add an OAuth flow to an existing Android application.

A drop-in replacement for Google Play services location APIs for Android

Retro watch is open source smart watch project using Arduino and Android.

SmartNavi offers OpenSource, step-based and GPS independent navigation for Android. smartnavi-app.com

An Android App that can be used as laptop touchpad via local Network