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

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

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

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

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

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

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

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

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

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.

The offline app for universal education

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

Distributed, high-performance SQL database

A collaborative online office suite based on LibreOffice technology

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

Claude Code agent coordination skill for multi-agent task orchestration

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

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

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

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.

Litmus is a toolset to do cloud-native chaos engineering

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

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

Reliable components for building language runtimes

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

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

An open source plasma physics package in Python

The compiler for writing next generation JavaScript.

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.

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

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

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

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

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

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

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.

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

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

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.

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

The Visual F# compiler and tools

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

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

.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.

OpenWrt packages composing LibreMesh meta-firmware for wireless mesh networking

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.

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.

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

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.

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

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

A GitHub bot to automate repeatedly tasks

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.

Demonstration of different algorithms and operations on faces.

A cross-platform UI framework for .NET

Realtime collaborative markdown notes

Free SVG icons for popular brands.

Jupyter’s Next-Generation Notebook Interface.

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

Open-source alert management and workflow automation platform.

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

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

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

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.

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

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

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

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 Guake drop-down terminal

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

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

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

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.

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.

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.

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!

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

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).

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

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.

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

Documentation for .NET

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

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

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

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

Linux feed reader for GNOME/GTK

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.

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

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.

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

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

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

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.

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.

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

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

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

An F# Type Provider to interop with R

Web based translation tool with tight version control integration.

Fast and minimalist 3D viewer

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

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

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

Interactive learning platform using Python and Javascript with AngularJS

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

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

Open-source observability for LLMs, based on OpenTelemetry

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.

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.

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.

.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.

A Collectible Card Game inspired by Triple Triad

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.

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.

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

A beautiful Git repository visualizer useful for teaching Git

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

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.

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.

phpMyAdmin Bringing MySQL to the web

An open source marketing automation platform.

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.

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

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.

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

Fast, disk space efficient package manager

A programming assignment submission system

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.

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

Computer Science Topics

Production-Grade Container Storage for KUbernetes

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 faster Python type checker and language server written in Rust

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

The strictest and most opinionated python linter ever!

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.

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

A react todo component created using matirail ui

High Performance Data Backbone for Robotics and Industrial IoT

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

Open source Slack-alternative in Golang and React

JavaScript library for mobile-friendly interactive maps

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.

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

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

The Solidity Contract-Oriented Programming Language

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.

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

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

A safe home for all your data

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.

Consul - Open Government and E-Participation Web Software Edit

A toolkit for .NET projects

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

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

icalendar parser library for Python

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

Your self-hosted live video streaming and chat server.

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.

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.

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

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

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.

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

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

Multi-platform 2D and 3D game engine

A framework for building native apps with React.

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

The parallel browser engine project

ClickHouse is a fast open-source OLAP database management system

A FOSS, offline first personal diary application written in Flutter

Web-based XMPP/Jabber chat client written in JavaScript

Core formulae for the Homebrew package manager

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

An open source publishing platform for environmental projects.

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

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

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

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

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

Production-Grade Container Scheduling and Management

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

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.

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

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

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

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

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

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

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.

An open-source, nonprofit activism network

PowerShell for every system!

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.

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

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.

Kontent.ai Content Management .NET SDK