AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web - then synthesizes a grounded summary
real time face swap and one-click video deepfake with only a single image
The AI Scientist-v2: Workshop-Level Automated Scientific Discovery via Agentic Tree Search
Open-Source Frontier Voice AI
Building a modern alternative to Salesforce, powered by the community.
OCR model that handles complex tables, forms, handwriting with full layout.
An agentic skills framework & software development methodology that works.
An autonomous agent for deep financial research
Teams-first Multi-agent orchestration for Claude Code
Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.
Open Source AI Platform - AI Chat with advanced features that works with every LLM
The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies
Agentic AI Framework for Java Developers
Redisson - Valkey & Redis Java client. Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..
《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现
LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes implementing RAG, tool calling (including support for MCP), and agents easy. LangChain4j integrates seamlessly with various enterprise Java frameworks.
Free and Open Source, Distributed, RESTful Search Engine
Design patterns implemented in Java
Spring Framework
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
JDK main-line development https://openjdk.org/projects/jdk
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
An Open Standard for lineage metadata collection
Apache IoTDB
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.
A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
基于GB28181-2016、部标808、部标1078标准实现的开箱即用的网络视频平台。自带管理页面，支持NAT穿透，支持海康、大华、宇视等品牌的IPC、NVR接入。支持国标级联，支持将普通摄像机/直播流/直播推流转国标共享到国标平台。
Learn System Design concepts and prepare for interviews using free resources.
AgentScope Java: Agent-Oriented Programming for Building LLM Applications
Netty project - an event-driven asynchronous network application framework
Enterprise-grade, commercial-friendly agentic workflow platform for building next-generation SuperAgents.
Apache Spark - A unified analytics engine for large-scale data processing
Open-source high-performance RISC-V processor
♞ lichess.org: the forever free, adless and open source chess server ♞
Scala based HDL
An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs
Open-source code analysis platform for C/C++/Java/Binary/Javascript/Python/Kotlin based on code property graphs. Discord https://discord.gg/vv4MH284Hc
The Scala 3 compiler, also known as Dotty.
Rapidly build powerful command-line applications powered by ZIO
Gluten is a middle layer responsible for offloading JVM-based SQL engines' execution to native engines.
State of the Art Natural Language Processing
An open protocol for secure data sharing
Source code for the X Recommendation Algorithm
Scala language server with rich IDE features 🚀
The Community Maintained High Velocity Web Framework For Java and Scala.
Modern Load Testing as Code
Berkeley's Spatial Array Generator
Spark: The Definitive Guide's Code Repository
A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility
TheHive is a Collaborative Case Management Platform, now distributed as a commercial version
Powerful, joyful building blocks for modern cloud-native applications.
Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala
Spark reference applications
Legado 3.0 Book Reader with powerful controls & full functions❤️阅读3.0, 阅读是一款可以自定义来源阅读网络内容的工具，为广大网络文学爱好者提供一种方便、快捷舒适的试读体验。
使用 Material Design 3 全新设计的阅读 3.0
Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems
Android Matrix messenger application using the Matrix Rust Sdk and Jetpack Compose
🦭 Video/Audio Downloader for Android, based on yt-dlp
Android TV Client for Jellyfin
Datadog SDK for Android (Compatible with Kotlin and Java)
Free and open source manga reader for Android
DuckDuckGo Android App
A Sentry SDK for Java, Android and other JVM languages.
短信转发器——监控Android手机短信、来电、APP通知，并根据指定规则转发到其他手机：钉钉群自定义机器人、钉钉企业内机器人、企业微信群机器人、飞书机器人、企业微信应用消息、邮箱、bark、webhook、Telegram机器人、Server酱、PushPlus、手机短信等。包括主动控制服务端与客户端，让你轻松远程发短信、查短信、查通话、查话簿、查电量等。（V3.0 新增）PS.这个APK主要是学习与自用，如有BUG请提ISSUE，同时欢迎大家提PR指正
A Kernel based root solution for Android
Framework for quickly creating connected applications in Kotlin with minimal effort
Square’s meticulous HTTP client for the JVM, Android, and GraalVM.
Another Shizuku impl
A private messenger for Android.
AI coding assistant for Xcode
A tool to enforce Swift style and conventions.
MacOS Niri and Hyprland inspired tiling window manager that's developer signed and notorized (safe for managed enterprise environments). Aiming for parity and extra innovation.
Elegant HTTP Networking in Swift
FluidVoice - Fastest macOS Offline Dictation app - Voice to Text fully Local. One ⭐ takes us a long way :))
On-device Speech Recognition for Apple Silicon
The Swift Programming Language
Commonly used data structures for Swift
Event-driven network application framework for high performance protocol servers & clients, non-blocking.
A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.
Stripe iOS SDK
Free Weather Forecast API for non-commercial use
A virtual platform team for mobile devs who ship
An iOS library to natively render After Effects vector animations
Community fork of PlayCover
📸 Delightful Swift snapshot testing.
A toolkit for SQLite databases, with a focus on application development
AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web - then synthesizes a grounded summary
real time face swap and one-click video deepfake with only a single image
The AI Scientist-v2: Workshop-Level Automated Scientific Discovery via Agentic Tree Search
Open-Source Frontier Voice AI
OCR model that handles complex tables, forms, handwriting with full layout.
Open Source AI Platform - AI Chat with advanced features that works with every LLM
Build and run agents you can see, understand and trust.
The context development platform. Store, enrich, and retrieve structured knowledge with graph-native infrastructure, semantic retrieval, and portable context cores.
An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.
LLM驱动的 A/H/美股智能分析器：多数据源行情 + 实时新闻 + LLM决策仪表盘 + 多渠道推送，零成本定时运行，纯白嫖. LLM-powered stock analysis system for A/H/US markets.
自动化上传视频到社交媒体：抖音、小红书、视频号、tiktok、youtube、bilibili
+192 Claude Code skills & agent plugins for Claude Code, Codex, Gemini CLI, Cursor, and 8 more coding agents — engineering, marketing, product, compliance, C-level advisory.
Databricks Toolkit for Coding Agents provided by Field Engineering
Trail of Bits Claude Code skills for security research, vulnerability detection, and audit workflows
DeepAnalyze is the first agentic LLM for autonomous data science. 🎈你的AI数据分析师，自动分析大量数据，一键生成专业分析报告！
An event-driven framework designed to build and orchestrate multi-agent AI systems. It enables seamless integration of AI agents with real-world data sources and systems, facilitating complex, multi-step workflows.
A guide on how to use the Figma MCP server
Design editor for Claude Code and Cursor. "Figma Comments" for the browser, are sent directly to Claude Code and Cursor as prompts.
Remote MCP Server that securely connects Jira and Confluence with your LLM, IDE, or agent platform of choice.
draw.io is a JavaScript, client-side editor for general diagramming.
The iconic SVG, font, and CSS toolkit
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
⚡ Dynamically generated stats for your github readmes
Expert-level WordPress knowledge for AI coding assistants - blocks, themes, plugins, and best practices
Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering.
Claude Code Skill for browser automation with Playwright. Model-invoked - Claude autonomously writes and executes custom automation for testing and validation.
Blockbench - A low poly 3D model editor
A systematic tutorial on vibe coding, help beginners turn ideas into prototypes, MVPs, and launch-ready products.
Independent technology for modern publishing, memberships, subscriptions and newsletters.
Socket-based TS/JavaScript API for WhatsApp Web
React-based framework with performance, scalability, and security built in.
Building a modern alternative to Salesforce, powered by the community.
An autonomous agent for deep financial research
Teams-first Multi-agent orchestration for Claude Code
Visual Studio Code
Give Claude Code a subconscious
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
Playwright MCP server
TAKT Agent Koordination Topology - Define how AI agents coordinate, where humans intervene, and what gets recorded — in YAML
Fluent UI web represents a collection of utilities, React components, and web components for building web applications.
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
Backstage is an open framework for building developer portals
An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.
OWASP Juice Shop: Probably the most modern and sophisticated insecure web application
Spec-driven development (SDD) for AI coding assistants.
Apache Superset is a Data Visualization and Data Exploration Platform
Ask the oracle when you're stuck. Invoke GPT-5 Pro with a custom context and files.
The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems
OpenTelemetry Collector distribution with programmable pipelines
Secure environments for developers and their agents
Basecamp CLI and Agent Skills
MCP Toolbox for Databases is an open source MCP server for databases.
Podman: A tool for managing OCI containers and pods.
The SPIFFE Runtime Environment
Backup and migrate Kubernetes applications and their persistent volumes
CLI tool and library for generating a Software Bill of Materials from container images and filesystems
Heterogeneous GPU Sharing on Kubernetes
Open device management
视频号、小程序、抖音、快手、小红书、直播流、m3u8、酷狗、QQ音乐等常见网络资源下载!
Harness Open Source is an end-to-end developer platform with Source Control Management, CI/CD Pipelines, Hosted Developer Environments, and Artifact Registries.
Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.
Framework for AI Backend. Build and run AI agents like microservices - scalable, observable, and identity-aware from day one.
OpenBao is a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys.
GMSSH: Desktop-Grade AI-Driven Operations Terminal High Performance · Non-Intrusive · AI-Powered;GMSSH 桌面级 AI 运维终端.高性能·AI 智驱
Go library for the WhatsApp web multidevice API
Connect your devices into a secure WireGuard®-based overlay network with SSO, MFA and granular access controls.
Generate type-safe code from SQL
Vulnerability scanner written in Go which uses the data provided by https://osv.dev
π RuView: WiFi DensePose turns commodity WiFi signals into real-time human pose estimation, vital sign monitoring, and presence detection — all without a single pixel of video.
☄🌌️ The minimal, blazing-fast, and infinitely customizable prompt for any shell!
Chromium running inside your terminal
Plano is an AI-native proxy and data plane for agentic apps — with built-in orchestration, safety, observability, and smart LLM routing so you stay focused on your agents core logic.
Lightweight coding agent that runs in your terminal
Worktrunk is a CLI for Git worktree management, designed for parallel AI agent workflows
Self-hosted AI coding assistant
High-performance data engine for AI and multimodal workloads. Process images, audio, video, and structured data at any scale
The user-friendly command line shell.
egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native
Data infrastructure for AI
A Git extension for tracking the AI-generated code in your repos
Extremely fast Query Engine for DataFrames, written in Rust
A modern runtime for JavaScript and TypeScript.
All-in-one LLM CLI tool featuring Shell Assistant, Chat-REPL, RAG, AI Tools & Agents, with access to OpenAI, Claude, Gemini, Ollama, Groq, and more.
zenoh unifies data in motion, data in-use, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks.