Termux - a terminal emulator application for Android OS extendible by variety of packages.

Free universal database tool and SQL client

The java implementation of Apache Dubbo. An RPC and microservice framework.

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Open Source Identity and Access Management For Modern Applications and Services

an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.

Apache Kafka - A distributed event streaming platform

Telegram for Android source

The automation tower defense RTS

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

🔥 Seata is an easy-to-use, high-performance, open source distributed transaction solution.

A tool for reverse engineering Android apk files

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

Apache Pulsar - distributed pub-sub messaging system

Style and Grammar Checker for 25+ Languages

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

MIT Deep Learning Book in PDF format (complete and parts) by Ian Goodfellow, Yoshua Bengio and Aaron Courville

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Free implementation of Play Services

Generate diagrams from textual description

No clever tagline needed.

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

The Java gRPC implementation. HTTP/2 based RPC

Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly co…

Test Automation Made Simple

Gnirehtet provides reverse tethering for Android

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

Reformats Java source code to comply with Google Java Style.