aeron-io / simple-binary-encoding

Simple Binary Encoding (SBE) - High Performance Message Codec

Snailclimb / interview-guide

基于 Spring Boot 4.1、Java 25、Spring AI 2.0、React、PostgreSQL/pgvector、Redis 和 RustFS 构建的开源 AI 面试平台，支持简历智能分析、模拟面试、语音面试和知识库 RAG。

apache / nutch

Apache Nutch is an extensible and scalable web crawler

oracle / visualvm

VisualVM is an All-in-One Java Troubleshooting Tool

Wisser / Jailer

Database Subsetting and Relational Data Browsing Tool.

tlaplus / tlaplus

TLC is a model checker for specifications written in TLA+. The TLA+Toolbox is an IDE for TLA+.

erupts / erupt

Code as configuration. Annotate a Java entity with @Erupt and ship a production-grade admin backend in minutes — UI, RBAC, audit logs and APIs, all generated at runtime. No codegen, no frontend.

zinja-coder / jadx-ai-mcp

Plugin for JADX to integrate MCP server

starcwang / easy_javadoc

IntelliJ IDEA 插件，自动生成javadoc文档注释

paulpacifico / shutter-encoder

A professional video compression tool accessible to all, mostly based on FFmpeg.

drewnoakes / metadata-extractor

Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files

bucket4j / bucket4j

Java rate limiting library based on token-bucket algorithm.

federicoiosue / Omni-Notes

Open source note-taking application for Android

eclipse-collections / eclipse-collections

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

mendhak / gpslogger

:satellite: Lightweight GPS Logging Application For Android.

apache / fineract

Apache Fineract

Peergos / Peergos

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

qos-ch / slf4j

Simple Logging Facade for Java

ta4j / ta4j

A Java library for technical analysis.

REAndroid / APKEditor

Powerful android apk editor - aapt/aapt2 independent

kerwincui / FastBee

FastBee开源物联网平台，简单易用，可用于搭建物联网平台以及二次开发和学习。适用于智能家居、智慧办公、智慧社区、农业监测、水利监测、工业控制等。

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.

MarginaliaSearch / MarginaliaSearch

Internet search engine for text-oriented websites. Indexing the small, old and weird web.

continew-org / continew-admin

🔥Almost最佳后端规范🔥页面现代美观，且专注设计与代码细节的高质量多租户中后台管理系统框架。开箱即用，持续迭代优化，持续提供舒适的开发体验。当前采用技术栈：SpringBoot v3.4.x (Java17)、Vue3 & ArcoDesign、TS、Vite5 、SaToken、MyBatisPlus、Redisson、FastExcel、CosId、JetCache、JustAuth、Crane4j、SpringDoc、Hutool 等。

sanluan / PublicCMS

More than 2.7 million lines of code modification continuously iterated for 10 years to modernize java cms, easily supporting tens of millions of data, tens of millions of PV; Support static, server side includes; Currently has 0.0005% of the world's users (w3techs provided data), language support in Chinese, Japanese, English

sleeyax / burp-awesome-tls

Burp extension to evade TLS fingerprinting. Bypass WAF, spoof any browser.

AppliedEnergistics / Applied-Energistics-2

A Minecraft Mod about Matter, Energy and using them to conquer the world..

GrimAnticheat / Grim

Fully async, multithreaded, predictive, open source, 3.01 reach, 1.005 timer, 0.01% speed, 99.99% antikb, "bypassable" 1.8-1.21 minecraft anticheat.

apache / solr

Apache Solr open-source search software

ViaVersion / ViaVersion

Allows of newer clients to connect to older server versions for Minecraft servers.

Stonewuu / ai-fusion-video

【融光】 - 基于 Agent 的全流程AI短剧/漫剧/视频创作平台 - Java & agentscope2.0 | Agent-based end-to-end AI creation platform for short dramas, motion comics, and videos – built on Java & & agentscope 2.0.

alfio-event / alf.io

alf.io - The open source ticket reservation system for conferences, trade shows, workshops, meetups

ReaJason / MemShellParty

一款专注于 Java 主流 Web 中间件的内存马快速生成工具，致力于简化安全研究人员和红队成员的工作流程，提升攻防效率

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).

protegeproject / protege

Protege Desktop

apache / hop

Hop Orchestration Platform

arsLan4k1390 / Cherrygram

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apache / jena

Apache Jena, A free and open source Java framework for building Semantic Web and Linked Data applications.

Hello-hao / Tbed

Hellohao图床 | 图像托管 | 云相册，分享/水印、存储源分发、图像管理、前后端分离。

mkpaz / atlantafx

Modern JavaFX CSS theme collection with additional controls.

datavane / tis

Support agile Ontology DataOps Based on Flink, DataX and Flink-CDC with Web-UI

haveno-dex / haveno

Decentralized P2P exchange platform built on Monero and Tor

eddyizm / tempus

An open source and lightweight music client for Subsonic, designed and built natively for Android.

booklore-app / booklore

BookLore: A self-hosted, multi-user digital library with smart shelves, auto metadata, Kobo & KOReader sync, BookDrop imports, OPDS support, and a built-in reader for EPUB, PDF, and comics.

dromara / tianai-captcha

captcha captcha captcha 可能是java界最好的开源行为验证码 [滑块验证码、点选验证码、行为验证码、旋转验证码， 滑动验证码]

SonarSource / sonar-java

:coffee: SonarSource Static Analyzer for Java Code Quality and Security

jhipster / prettier-java

Prettier Java Plugin

java-up-up / damai

🔥 🔥 官方推荐 🔥 🔥 高并发大麦网售票系统，使用 SpringCloud、Kafka、Redis、Sentinel、ElasticSearch、ShardingSphere 等，通过优化锁的策略、多级缓存管理、数据提前预热、精确的定制限流等多种策略，显著的降低下单延迟。此外还解决各种高并发难题的实际落地解决方案。是面试、就业、提高技术的不二选择！

mateaix / mateclaw

🤖 MateClaw — Your second brain with Multi-Agent Orchestration, MCP Protocol, Skills & Memory, Dream, and Multi-Channel Support. Built on Spring AI Alibaba.

nextcloud / notes-android

✎ Android client for Nextcloud Notes app.

mwiede / jsch

fork of the popular jsch library

bytechefhq / bytechef

Open-source AI agents and workflow automation. Self-host or embed in your SaaS. Apache 2.0 alternative to n8n and Zapier.

OpenGamma / Strata

Open source analytics and market risk library from OpenGamma

samskivert / jmustache

A Java implementation of the Mustache templating language.

ldtteam / minecolonies

Minecolonies minecraft mod

gurkenlabs / litiengine

LITIENGINE 🕹 The Java 2D game engine.

PolyhedralDev / Terra

Voxel world generation modding platform

miaixzo / bus

Bus (Enterprise Application/Service Bus) is a foundational framework and service suite; a lightweight enterprise-grade application/service framework built on Java 21+, providing standardized service suites and distributed middleware solutions.

Yohann0617 / oci-helper

基于 Oracle OCI SDK 🐢 开发的 web 端可视化甲骨文云助手（Y探长），目前实现的功能有：批量添加多个租户配置、更改实例配置、引导卷配置、一键开启免费AMD实例下行500Mbps、一键更新、一键救援/缩小硬盘、附加ipv6、安全列表、实时流量查询（分钟级别）、根据多个 CIDR 网段更换实例公共IP、多租户同时批量抢机、Cloud Shell 控制台、断点续抢、备份恢复、日志实时查看、消息通知、MFA登录验证、更新 Cloudflare DNS 记录、TG 机器人操作等功能。

valkey-io / valkey-glide

An open source Valkey client library that supports Valkey, and Redis open source 6.2, 7.0 and 7.2. Valkey GLIDE is designed for reliability, optimized performance, and high-availability, for Valkey and Redis OSS based applications. GLIDE is a multi language client library, written in Rust with programming language bindings, such as Java and Python