Repository Index

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• openapi3
• json-schema
• protobuf
• typespec

A fast, ad-free home screen for Google TV, LG webOS and Samsung Tizen. One button to undo.

• android-tv
• claude-code
• google-tv
• home-screen

JanusGraph: an open-source, distributed graph database

• graph-database
• tinkerpop
• gremlin
• hbase

A high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter

• minecraft
• fabric
• neoforge

Open-Source Subscription Billing & Payments Platform

• killbill
• billing
• payments
• subscriptions

An extensible multilanguage static code analyzer.

• code-analysis
• code-quality
• static-analysis
• static-code-analysis

LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL, Vulkan, bgfx), audio (OpenAL, Opus), parallel computing (OpenCL, CUDA) and XR (OpenVR, LibOVR, OpenXR) applications.

• lwjgl
• kotlin
• opengl
• opencl

Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.

• java
• commandline
• parser
• ansi-colors

RecyclerView extension library which provides advanced features. (ex. Google's Inbox app like swiping, Play Music app like drag and drop sorting)

• android
• recyclerview
• drag-and-drop
• swipe

Yahoo! Cloud Serving Benchmark

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

• http
• http2
• http-server
• http-client

An Open Source Java Decompiler Gui for Procyon

No-root network monitor, firewall and PCAP dumper for Android

• pcap
• capture-traffic
• android
• no-root

A scalable, distributed Time Series Database.

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

• mock-server
• proxy
• java-client
• javascript-client

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.

• orientdb
• graph-database
• document-database
• dbms

Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for Mac and Windows.

• webdav
• sftp
• azure
• openstack-swift

Reactive Streams Specification for the JVM

:ballot_box_with_check: [Cheatsheet] Tips and tricks for Android Development

• android-development
• android-studio
• gradle
• cheatsheet

Java wrapper for the popular chat & VOIP service: Discord https://discord.com

• discord
• rest-api
• websocket
• java

Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector)

Open Source Web Crawler for Java

A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

• cross-language
• fast
• jit
• multiple-language

Roadmap to becoming a Java developer in 2026

• java
• jee
• roadmap
• guidelines