Open cloud security platform for AWS, Azure, GCP, Kubernetes, Github, M365 and more. Prowler performs security assessments and compliance checks with hundreds of built-in controls for security frameworks like CIS, NIST 800, NIST CSF, CISA, FedRAMP, PCI-DSS, GDPR, HIPAA, and more.

Self-hosted control plane to deploy, monitor, and operate OpenClaw and Hermes AI agents on Docker or Kubernetes.

BuildCLI is a command-line interface (CLI) tool for managing and automating common tasks in Java project development.

Header-Only C++ Library for Graph Representation and Algorithms

The OpenTelemetry website and documentation. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

Your self-hosted live video streaming and chat server.

An epic, browser-based roguelite survival game built with React, Vite, and HTML5 Canvas.

Repo-native coding-agent loop harness for Claude, Codex, Copilot, and other CLI agents. Agents can edit; gates decide what lands.

Local-first Japanese speaking practice app for Korean learners with Expo, FastAPI, and local STT/TTS.

The compiler for writing next generation JavaScript.

🦀 An open source payments switch to make Payments fast, reliable, and affordable.

ClickHouse is a fast open-source OLAP database management system

Fast and minimalist 3D viewer

Web based translation tool with tight version control integration.

PowerShell for every system!

Offline-first sync engine in Rust for clinics in low-connectivity environments (2G, power outages). Built on an encrypted write-ahead log, version vectors, hybrid logical clocks, and mTLS. Under 10 MB RAM on Raspberry Pi 3.

The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons. Initially started by the Wikimedia Foundation, this app is now maintained by volunteers.

A cross-platform, open source, and super fast MUD client with scripting in Lua

This repo contains the curriculum of Techtonica, a tech training program for women and non-binary adults with low incomes.

Meshery enables collaborative design and operation of cloud and cloud native infrastructure. Meshery is an extensible, self-service engineering platform.

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.

PyTorch is an open source machine learning library based, used for applications such as computer vision and NLP.

Linux feed reader for GNOME/GTK

A real-time visualisation of the Greenhouse Gas (in terms of CO2 equivalent) footprint of electricity consumption.

The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

The Visual F# compiler and tools

An opensource identity and access management platform as an alternative to Auth0

Windows Forms also provides one of the most productive ways to create desktop applications based on the visual designer provided in Visual Studio. It enables drag-and-drop of visual controls and other similar functionality that make it easy to build desktop applications.

A FOSS, offline first personal diary application written in Flutter

Open-source AI-powered education infrastructure platform for assessment, grading, OCR, analytics, and learning intelligence.

Keyboards for language learners with translation, verb conjugation and more!

An interface-centric real-time communication engine to connect Things at the edge of the network and develop distribute embedded applications.

A lightweight but powerful source code editor which runs on your desktop and is available for Windows, macOS and Linux.

Brighter is a CQRS framework for .NET supporting in-process and out-of-process command handlers using task queues

Free, open-source AWS certification practice exams (CLF-C02 and AIF-C01) with explained answers, timed mock exams, and domain practice. No signup, no ads, MIT licensed.

The http://freeCodeCamp.com open source codebase and curriculum. Learn to code and help nonprofits.

WPF is a .NET Core UI framework for building Windows desktop applications.

Organizing the information that matters to you and your teams. The knowledge of your world.

Dependency security scanner for AI coding agents — scans vulnerabilities, licenses, typosquats in your project.

The OpenTelemetry Python Contrib project. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

A programming assignment submission system

High Performance Data Backbone for Robotics and Industrial IoT

A lightweight, local-only Chrome extension that reduces common third-party website tracking by blocking known tracker requests, cleaning tracking links, and explaining tracking attempts.

open source, low-latency, high quality voice chat software primarily intended for use while gaming

The OpenTelemetry Java Contrib project. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

This repository is to write program the famous Fibonacci series in as many different programming languages as we can.

.NET is a cross-platform runtime and libraries for cloud, IoT, and desktop apps.

JavaScript implementation of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

An open-source, nonprofit activism network

A safe home for all your data

MyFinances is a web application that can help you as an individual, or team manage your finances! It utilizes the django framework for the backend.

A web-based tool to visualize popular sorting algorithms with animations, built using React and Material-UI.

ASP.NET Core is a cross-platform .NET for building modern web applications on Windows, Mac, or Linux.

This repo helps developers who wants to build portfolio by taking inspiration from already deployed Portfolios. For those who already built, Showcase your Awesome Portfolio to the world.

Core formulae for the Homebrew package manager

Open Standard for Metadata. A Single place to Discover, Collaborate and Get your data right.

A community-curated collection of simplified and example-driven man pages.

OpenTelemetry auto-instrumentation and instrumentation libraries for Java. OpenTelemetry is a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

The parallel browser engine project

A collaborative online office suite based on LibreOffice technology

Client libraries for Sentry, an error reporting and performance monitoring platform, for usage from .NET and popular application frameworks

An open source, cloud-native programming language optimized for integration.

Demonstration of different algorithms and operations on faces.

An F# Type Provider to interop with R

Open-source alert management and workflow automation platform.

A Vulnerable Web Application for DAST developers, Students and DAST consumers.

Official TypeScript SDK for the Kakunin AI Agent KYC platform — issues X.509 certificates to AI agents, verifies scopes, and enforces them via drop-in middleware.

An ORM for node.js supporting PostgresQL, MySQL, sqlite and MSSQL

A GitHub bot to automate repeatedly tasks

An open source publishing platform for environmental projects.

An open source plasma physics package in Python

Claude Code agent coordination skill for multi-agent task orchestration

DevDisplay is the First Global Platform for Developers to Fulfill All Their Tech Needs. A paradise for developers, where they can Connect ▸ Collab ▸ Code ▸ Create ▸ Conquer — all in one place.

A .NET port of the popular Java/Scala Akka Toolkit.

The Solidity Contract-Oriented Programming Language

Realtime secret and configuration management tool, with the best in class security and seamless integration support

Give your AI agent a real browser. MCP server + Chrome extension for task-level browser automation.

Javascript database for traditional SQL queries. Smaller and faster alternative to sql.js

Production-Grade Container Storage for KUbernetes

EvalAI is an open source web application that helps researchers, students and data-scientists to create, collaborate and participate in various AI challenges organized round the globe.

Img2Num is a cross-platform library that converts raster images such as PNG and JPEG into clean, layered SVG paths. It is designed for high performance with WebGPU acceleration, minimal dependencies, cross-platform support, and bindings for multiple programming languages.

Storybook is a development environment for UI components. It allows you to browse/develop/test a component library based on React & React-Native.

A cross-platform UI framework for .NET

AuthPass is a cross platform password manager for desktop and mobile (Android, iOS) based on flutter. It uses the Keepass 2 file format (kdbx) and provides native builds for all major platforms (Android, iOS, iPadOS, MacOS, Windows, Linux).

wger is a free, open source flutter application that manages and tracks/logs your exercises and personal workouts, weight and diet plans.

The fastest way to browse and search for videos on your computer

Browser add-on allowing you to quickly generate a QR code offline with the URL of the open tab or other text!

Security-first, self-hosted AI agents with container isolation you can prove, not just promise. Runs untrusted agent code in hardened sandboxes. Written in Go.

Self-hosted website uptime monitor with real-time analytics, interactive charts & anti-sleep engine. No UptimeRobot needed.

icalendar parser library for Python

A Python framework for modular, self-contained skill management for machines.

Theia is a cloud & desktop IDE framework implemented in TypeScript.

Multi-platform 2D and 3D game engine

phpMyAdmin Bringing MySQL to the web

Contrib repository for the OpenTelemetry Collector. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

Interactive learning platform using Python and Javascript with AngularJS

A peer-run open-source network where developers earn verifiable reputation through contributions, peer reviews, and on-chain attestations.

scikit-learn models hyperparameters tuning, using evolutionary algorithms.

Shogun is a unified and efficient machine learning library. We support multiple languages and platforms, have an efficient core in C++ and a great community.

Governed shared memory for AI agent fleets — multi-agent, multi-tenant, MCP-native. Trust tiers, keystone policies, audit trails, knowledge graph, self-improving retrieval. Apache 2.0.

A curated directory of developer podcasts for software engineering teams. It is an open-source collection of podcasts that covers system architecture, cloud-native, DevOps, B2B SaaS, AI/ML, and engineering leadership.

ODK Collect is an Android app for filling out forms. It's been used to collect millions of data points in challenging environments around the world. Contribute and make the world a better place!

Open source Slack-alternative in Golang and React

Realtime collaborative markdown notes

Proof-of-Antiquity blockchain with hardware attestation - rewards vintage hardware miners (PowerPC G4/G5, POWER8) with RTC tokens

Symfony is a PHP framework for web applications and a set of reusable PHP components. Symfony is used by thousands of web applications and most of the popular PHP projects.

.NET Aspire is an opinionated, cloud ready stack for building observable, production ready, distributed applications in .NET

The OpenTelemetry JavaScript Contrib project. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

OpenWrt packages composing LibreMesh meta-firmware for wireless mesh networking

Content curation tools for Kolibri Learning Platform (the offline app for universal education)

Community bounty board for RustChain ecosystem - earn RTC tokens for contributions

A simple and fast CDN written in Go meant for beginner programmers to learn about docker and CDNs

MIT registry and CLI for installing wired Payload CMS blocks into Payload v3 and Next.js projects.

Consul - Open Government and E-Participation Web Software Edit

Production-Grade Container Scheduling and Management

The strictest and most opinionated python linter ever!

A repository of all Dockerfiles in one place to make it easier to find.

Kibana lets you visualize your Elasticsearch data and navigate the Elastic Stack so you can do anything from tracking query load to understanding the way requests flow through your apps.

Reliable components for building language runtimes

Java implementation of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

A daily-updated community curated directory of developer events taking place all over the world. It covers SaaS, DevOps, and AI events with dates, location, and registration links.

Build custom CRUD apps that talk to any API or database. All without HTML or CSS.

Grade exams fast and accurately using a scanner 🖨 or your phone 🤳.

A beginner-friendly open source learning lab with a DevOps glossary that helps newcomers make their first real open source contribution.

FreshRSS is a self-hosted RSS and Atom feed aggregator. It is lightweight, easy to work with, powerful, and customizable.

Bitwarden is the easiest and safest way to store all of your logins and passwords while conveniently keeping them synced between all of your devices. This repository houses all Bitwarden client applications except the Mobile application.

Probably the most modern lightweight distributed farm of Vulnerable Applications built for handling wide range of vulnerabilities across tech stacks.

The comprehensive CMS for small to medium sized businesses and non-profits.

Android application used to capture geotagged images of trees for ecosystem restoration projects.

(Facebook Open Source) Easy to maintain open source documentation websites that powers website of React Native, Prettier, WarriorJS and Jest

Generation of diagram and flowchart from text in a similar manner as markdown

Python implementation of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs.

A declarative, efficient, and flexible JavaScript library for building user interfaces.

A search-engine for openly-licensed media, part of the WordPress project

Deterministic orchestrator for 30+ CLI AI coding agents (Claude Code, Codex, Aider, Cursor, Goose, etc.). Git worktree isolation, HMAC audit trail, MCP server mode.

Saleor is a high-performance, GraphQL-first e-commerce solution created with Python and Django. https://getsaleor.com/

A neo-brutalist React component library built with Tailwind CSS, featuring zero-gap layout logic, automated YIQ contrast calculation, and high structural stability.

Manage localization of all ResX-Based resources in one central place

The Guake drop-down terminal

JavaScript library for mobile-friendly interactive maps

Litmus is a toolset to do cloud-native chaos engineering

C++ implementation of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

An open-source AI-powered learning platform with intelligent tutoring, adaptive assessments, and personalized study tools. Full-stack application with NestJS backend, React frontend, and Flutter mobile app.

Open-source Python toolkit for water data, hydrology, and agricultural water management. Unifies 15 global water-data sources behind one schema, with Bulletin 17C flood frequency, baseflow separation, FAO-56 crop water requirements, and an AI methodology recommender. Issues are scoped with clear acceptance criteria and a first-issue to second-issue to area-owner contributor ladder.

A curated, community-driven list of the best tech, software engineering, and developer marketing newsletters. Stay up-to-date with top-tier insights across AI, DevOps, Frontend, and more.

A Collectible Card Game inspired by Triple Triad

A retro RPG themed expense tracker for managing income, expenses, savings, and recurring finances

Self-hosted iOS & Android simulator streaming so the whole team can test mobile apps directly from a browser, using the Mac you already own with no external cloud.

A react todo component created using matirail ui

A JNA-based (native) Operating System and Hardware Information library for Java

.NET nanoFramework is a free and open-source platform that enables the writing of C# code applications for constrained embedded devices like ARM Cortex-M0/M4/M7, ESP32, TI CC3220, NXP and other microcontrollers.

Documentation for .NET

A community-driven python bot that aims to be as simple as possible to serve humans with their everyday tasks

Keyboards for language learners with translation, verb conjugation and more!

.NET implementation of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

The offline app for universal education

A beautiful Git repository visualizer useful for teaching Git

An open-source web app to help people hold prosecutors accountable for police brutality. Filter through prosecutors by name, role, state, area. Find resources like contact information & relevant articles.

qtop (pronounced queue-top) is a tool written in order to monitor the state of Queueing Systems, along with related information relevant on HPC & grid clusters. At present it supports **PBS, SGE & OAR** families but it is designed to be extendible.

Computer Science Topics

A Python package to assess and improve fairness of machine learning models.

Orchestration and automation platform to execute millions of scheduled and event-driven workflows declaratively in code and from the UI

A systems programming language focused on safety, speed, and concurrency.

A fast line-by-line code for computing high-resolution infrared molecular spectra

A framework for building native apps with React.

Matomo is the leading open alternative to Google Analytics that gives you full control over your data.

Collector for OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

TypeScript/Vite frontend template with a built-in gated autonomous agent loop.

NLog - Flexible and high performance logging framework for the .NET platforms

A faster Python type checker and language server written in Rust

A Node.js boilerplate for quickly building and deploying web applications, ideal for hackathons, startups, and early-stage prototypes.

Open-source observability for LLMs, based on OpenTelemetry

Web-based XMPP/Jabber chat client written in JavaScript

Core functionality needed to create .NET projects, that is shared between Visual Studio and the .NET CLI

Ptera Software is a fast, easy-to-use, and open-source software package for analyzing flapping-wing flight.

PHP implementation of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

A safe home for all your data. Access & share your files, calendars, contacts, mail & more from any device, on your terms.

JabRef is a reference management software that uses BibTeX and BibLaTeX as its native formats and is therefore typically used for LaTeX. What makes JabRef development special is that two developers will review each pull request to ensure high quality.

TypeScript is a superset of JavaScript that compiles to clean JavaScript. It adds static typing and next-level ECMAScript features to JavaScript.

an open source layer that delivers resilience and manageability to object-storage based data lakes

Kubernetes Operator for OpenTelemetry Collector. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

Jupyter’s Next-Generation Notebook Interface.

A Claude-Tag-style context-selection layer for the Hermes agent framework: @-mention it in a Feishu/Lark or Slack group and it replies in-thread from bounded per-chat memory.

Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology.

Kontent.ai Content Management .NET SDK

An open source marketing automation platform.

Design, Test and Document APIs in plain Markdown. Compose Requests with API blocks. Reuse, Replace & Version everything just like code. Offline, Truly Git Native, No Lock-in.

The OpenTelemetry .NET Contrib project. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

A free, open source, community-focused unit testing tool for the .NET Framework.

chroot, mount --bind, and binfmt_misc without privilege/setup for Linux

A Java-based Smart City application for managing users and places. Beginner-friendly issues available.

Sandstorm is a self-hostable web productivity suite. It's implemented as a security-hardened web app package manager.

Distributed, high-performance SQL database

OpenVINO™ is an open-source toolkit for optimizing and deploying AI inference.

A project designed to help you familiarize yourself with the open source contribution workflow on GitHub, as well as to help you learn the basics of programming in different languages.

Specification of OpenTelemetry, a working name of a combined OpenCensus and OpenTracing project. It provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.

A toolkit for .NET projects

Learn production backend engineering through runnable failure cases with broken code, failing tests, fixes, and production notes.

A high-performance full-stack application that analyzes your music listening history using offline PyTorch Machine Learning and the Gemini API to visualize your auditory emotional journey.

🎥✨ A TikTok live streaming recorder tool written in Python. Capture and relive your favorite TikTok moments effortlessly. 🎥✨

Fast, disk space efficient package manager

Free SVG icons for popular brands.

CLI-agnostic AI job-search automation - pipeline tracking, offer evaluation, CV generation, and zero-token job scanning