A free, fast and beautiful API request builder.

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

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

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

Production-Grade Container Scheduling and Management

Chrome DevTools extension that unifies React render timeline, performance, memory-leak detection, useEffect audit, CLS monitoring, Redux state inspection, and AI analysis into one panel.

PowerShell for every system!

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

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

List of IT, computer science and business courses with free certificates & badges.

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

An open-source, nonprofit activism network

Rust 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.

Open source Slack-alternative in Golang and React

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

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.

Kubernetes and Docker monitoring CLI for real-time workload, health, and log visibility

A port of SpaceStation 13 into unity

A Realtime Web Apps and Dashboards framework for Python and R. Suitable (not only) for AI audience.

The new JavaScript- and API-powered WordPress.com.

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

Interactive learning platform using Python and Javascript with AngularJS

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

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

A basic app to track your car's maintenance events, like fixes, oil changes, etc.

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

VS Code plugin for F# development

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

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

Multi-platform 2D and 3D game engine

A simple markdown viewer built with Python, designed for desktop users to open `.md` files directly.

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

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

Cross platform Native mobile apps with JavaScript

OSS project for creating pixel-perfect, single-source C# and XAML apps which run natively on iOS, Android, macOS, Linux and Web via WebAssembly.

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

Production-Grade Container Storage for KUbernetes

The parallel browser engine project

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

suricata-check is a command line utility to provide feedback on Suricata rules. The tool can detect various issues including those covering syntax validity, interpretability, rule specificity, rule coverage, and efficiency.

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

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.

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

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).

JHipster generator but with asp.net core backend

Free and Open Source Reverse Engineering Platform powered by radare2

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

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

TEAMMATES is a free online tool for managing peer evaluations and other feedback paths of your students. It is provided as a cloud-based service for educators/students and is currently used by hundreds of universities across the world.

Litmus is a toolset to do cloud-native chaos engineering

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

Free SVG icons for popular brands.

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.

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

Open-source observability for LLMs, based on OpenTelemetry

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

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

Web based translation tool with tight version control integration.

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

A programming assignment submission system

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.

Cross-platform, friend-to-friend and secure decentralised communication platform.

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.

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.

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

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

Fast and minimalist 3D viewer

GPT-powered chat for documentation, chat with your documents

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

Home Assistant User documentation

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.

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

OWASP ZAP add-on for finding vulnerabilities in JWT functionality.

A .NET tool that generates commit messages using OpenAI API

Web-based XMPP/Jabber chat client written in JavaScript

Open-source infrastructure for AI backends. Kubernetes for orchestration, Okta for identity.

ToolJet is an open-source low-code platform for building and deploying internal tools with minimal engineering efforts 🚀

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.

The free and open source social network for active citizenship.

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

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.

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.

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.

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

A framework for building native apps with React.

a facebook messenger bot that allows users to chat with other people on facebook anonymously.

.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.

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

Ruby on Rails application building framework

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.

Windows Hello style facial authentication for Linux

A bash-tool to store your private data inside a git repository

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

Open-source TypeScript framework for building durable, resumable workflows.

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

Open source email marketing and campaign management platform built with Next.js and TypeScript.

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.

Go 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 Loyalty Card & Ticket Manager for Android

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

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

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

Jupyter’s Next-Generation Notebook Interface.

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

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

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

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

UI for Apache Kafka is a free, open-source web UI to monitor and manage Apache Kafka clusters

LLMOps platform for developers and teams

TripAi is a powerful AI-based travel planning web application that helps users effortlessly generate customised trip itineraries. By leveraging Meta’s Llama 3.8B Instruct model and integrating real-time data from Amadeus APIs, TripAi delivers intelligent and practical trip suggestions – including flights, hotels, and personalised activities.

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

An open source marketing automation platform.

phpMyAdmin Bringing MySQL to the web

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

wger is a free, open source web application that manages and tracks/logs your exercises and personal workouts, weight and diet plans. It can also be used as a simple gym management utility and offers a REST API as well, for easy integration with other projects and tools.

A GitHub bot to automate repeatedly tasks

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

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.

libgit2 is a portable, pure C implementation of the Git core methods provided as a re-entrant linkable library with a solid API, allowing you to write native speed custom Git applications in any language which supports C bindings.

Keploy is a functional testing toolkit for developers. It generates E2E tests for APIs (KTests) along with mocks or stubs(KMocks) by recording real API calls. KTests can be imported as mocks for consumers and vice-versa.

The strictest and most opinionated python linter ever!

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.

JavaScript library for mobile-friendly interactive maps

An an easy-to-use backup tool for GNU Linux using rsync in the back.

The Electron framework lets you write cross-platform desktop applications using JavaScript, HTML and CSS.

Claude Code agent coordination skill for multi-agent task orchestration

MoinMoin is a lightweight open source wiki engine written in Python

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.

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.

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.

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

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

The NuGet Client tools. Includes 'nuget.exe' and the NuGet extensions for Microsoft Visual Studio and Microsoft WebMatrix

This site!

Open-source, AI-native workflow automation platform — a self-hosted alternative to Zapier and n8n. Describe a workflow in plain English and our AI builds it, refine it visually with a ReactFlow node editor. Ships with 120+ connectors. Built with React 19, NestJS, LangChain, and Qdrant.

.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.

.Net data provider for Postgresql

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

Fast, disk space efficient package manager

Core formulae for the Homebrew package manager

A collaborative online office suite based on LibreOffice technology

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.

icalendar parser library for Python

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

Julia is a high-level, high-performance dynamic programming language for technical computing. http://www.julialang.org

The next generation of JUnit.

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

Computer Science Topics

Beginner-friendly open-source lab for practicing Git, GitHub, issues, pull requests, CI, and maintainer workflows.

Help improve the PowerShell extension for Visual Studio Code!

A framework for securing software update systems

ClickHouse is a fast open-source OLAP database management system

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

Consul - Open Government and E-Participation Web Software Edit

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.

The Visual F# compiler and tools

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.

simple REST API, focused on quotes from the Ancestor of the Darkest Dungeon videogame

Faker library for generating fake (but realistic) data

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

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.

Distributed, high-performance SQL database

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

A safe home for all your data

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

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.

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

A full-stack AI agent platform built with Python and TypeScript.

A typescript video-editing framework for the browser and Node

The offline app for universal education

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

This repo is for the techtonica.org website for Techtonica, a nonprofit tech training program that helps women and non-binary adults with low incomes overcome barriers into tech careers.

Open-source alert management and workflow automation platform.

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

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

An extensible cross-language static code analyzer.

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.