bancika / diy-layout-creator

multi platform circuit layout and schematic drawing tool

fabienrenaud / java-json-benchmark

Performance testing of serialization and deserialization of Java JSON libraries

tradingtechnologies / Strata

Open source analytics and market risk library from OpenGamma

doocs / advanced-java

😮 Core Interview Questions & Answers For Experienced Java(Backend) Developers | 互联网 Java 工程师进阶知识完全扫盲：涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识

apache / shenyu

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

cBioPortal / cbioportal

cBioPortal for Cancer Genomics

symgraph / GhidrAssist

An LLM extension for Ghidra to enable AI assistance in RE.

Evolveum / midpoint

Evolveum MidPoint: Identity Management (IDM) and Identity Governance (IGA)

resilience4j / resilience4j

Resilience4j is a fault tolerance library designed for Java8 and functional programming

orientechnologies / orientdb

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.

Atmosphere / atmosphere

Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3. Speaks MCP, A2A, and AG-UI.

Minestom / Minestom

26.2 Lightweight Minecraft server

apache / atlas

Apache Atlas - Open Metadata Management and Governance capabilities across the Hadoop platform and beyond

babyfish-ct / jimmer

The most advanced ORM of JVM, for both java & kotlin

LINBIT / linstor-server

High Performance Software-Defined Block Storage for container, cloud and virtualisation. Fully integrated with Docker, Kubernetes, Openstack, Proxmox etc.

quickfix-j / quickfixj

QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.

carrotsearch / hppc

High Performance Primitive Collections for Java

petoncle / mousemaster

Mouseless mouse control and advanced keyboard customization for Windows and macOS.

Ray-T-r / Minecraft-Forbric-mod-loader

This mod loader can load Fabric, Forge, and NeoForge mods in a SINGLE Minecraft instance.

Ettacent / NimarkoGram

Open-source, unofficial Telegram client for Android with advanced customization, media tools and plugin support.

Rove24 / EnhanceGooglePhone

一款专为 Google 电话 (Google Dialer) 打造的现代化 Xposed / LSPosed 增强模块。免 Root 修改系统文件，原生解锁全功能通话录音（支持未存号码与指定号码自动录音），并将设置二级页面深度重构为 Material Design 3 (MD3 Expressive) 分组圆角卡片与现代 Switch 开关，联系人列表像素级对齐，尽享纯净优雅的原生体验。

netty / netty

Netty project - an event-driven asynchronous network application framework

javaparser / javaparser

Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

OpenHFT / Chronicle-Queue

Micro second messaging that stores everything to disk

AxonIQ / AxonFramework

Framework for Evolutionary Message-Driven Microservices on the JVM

MarquezProject / marquez

Collect, aggregate, and visualize a data ecosystem's metadata

apache / eventmesh

EventMesh is a new generation serverless event middleware for building distributed event-driven applications.

JonathanLink / PDFLayoutTextStripper

Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This is a subclass of PDFTextStripper class (from the Apache PDFBox library).

opendatadiscovery / odd-platform

First open-source data discovery and observability platform. We make a life for data practitioners easy so you can focus on your business.

apache / rocketmq-dashboard

The state-of-the-art Dashboard of Apache RoccketMQ provides excellent monitoring capability. Various graphs and statistics of events, performance and system information of clients and application is evidently made available to the user.

Netflix / hollow

Hollow is a java library and toolset for disseminating in-memory datasets from a single producer to many consumers for high performance read-only access.

hivemq / hivemq-mqtt-client

HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

Winds-Studio / Leaf

A Paper fork focused on finding the balance between performance, vanilla mechanics, and stability

apache / celeborn

Apache Celeborn is an elastic and high-performance service for shuffle and spilled data.

kirill-grouchnikov / radiance

Building modern, elegant and fast Swing applications

apache / bifromq

Apache BifroMQ (Incubating) is a high-performance, distributed MQTT broker that natively supports multi-tenancy. It is designed to enable the building of large-scale IoT device connectivity and messaging systems.

eclipse-inception / inception

INCEpTION provides a semantic annotation platform offering intelligent annotation assistance and knowledge management.

moneymanagerex / android-money-manager-ex

Local-first personal finance app. Encrypted, self-hosted, sync across devices.

TimefoldAI / timefold-quickstarts

Get started with Timefold quickstarts here. Optimize the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.

finmath / finmath-lib

Mathematical Finance Library: Algorithms and methodologies related to mathematical finance.

CryptoMorin / XSeries

Library for cross-version Minecraft Bukkit support and various efficient API methods.

HyperXenonZephyr / HyperCore

A high-performance hybrid Minecraft Java server core with mod and plugin compatibility, multi-core scheduling, and experimental GPU acceleration.

Dhangofa / NetToggle

NetToggle brings advanced cellular network controls to Android Quick Settings. Switch between 5G Only (SA/NR), 4G/LTE Only, Preferred 5G, Preferred 4G, Preferred 3G, and 2G Only. Build custom tile cycles, target one or both SIMs, create shortcuts, use secure broadcast automation, restore preferred modes, and diagnose failures using Root or Shizuku.

SysAdminDoc / HushThreads

HushThreads Morphe patches that take the ads out of your Threads feed and let you save photos and videos.

Ashmmmm / crockTail

crockTail is a passive OSINT (Open Source Intelligence) reconnaissance tool. Given a target domain, it aggregates publicly available information — DNS records, IP/ASN ownership, SSL/TLS certificate details, and domain registration data — into a single consolidated report.

Xalsace / QQEnhancedBypass

QQ Enhanced Bypass

SysAdminDoc / HushPinterest

HushPinterest Morphe patches for Pinterest. Hides promoted pins, AI-labeled pins, and much more.

testcontainers / testcontainers-java

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

cymcsg / UltimateRecyclerView

A RecyclerView(advanced and flexible version of ListView in Android) with refreshing,loading more,animation and many other features.

aeron-io / simple-binary-encoding

Simple Binary Encoding (SBE) - High Performance Message Codec

apache / linkis

Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.

aeron-io / agrona

High Performance data structures and utility methods for Java

OpenHFT / Chronicle-Map

Replicate your Key Value Store across your network, with consistency, persistance and performance.

itext / itext-java

iText for Java represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enhance PDF documents, iText can be a boon to nearly every workflow.

unclebob / fitnesse

FitNesse -- The Acceptance Test Wiki

ctripcorp / x-pipe

X-Pipe是由携程框架部门研发的Redis多数据中心复制管理系统。基于Redis的Master-Slave复制协议，实现低延时、高可用的Redis多数据中心、跨公网数据复制，并且提供一键机房切换，复制监控、异常报警等功能。开源版本和携程内部生产环境版本一致。

YeautyYE / netty-websocket-spring-boot-starter

:rocket: lightweight high-performance WebSocket framework （ 轻量级、高性能的WebSocket框架）

instancio / instancio

A library that creates fully populated objects for your unit tests.

odpi / egeria

Egeria core

dhatim / fastexcel

Generate and read big Excel files quickly