The Solidity Contract-Oriented Programming Language

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

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.

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.

Go SDK for The Colony. Idiomatic Go client for posting, commenting, messaging, and webhook handling.

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

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

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.

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.

Open source Slack-alternative in Golang and React

Kontent.ai Content Management .NET SDK

A set of FREE Api's that allow you to fill your application with mocked data

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.

Production-Grade Container Scheduling and Management

Cake (C# Make) is a free and open source cross-platform build automation system with a C# DSL for tasks such as compiling code, copying files and folders, running unit tests, compressing files and building NuGet packages.

phpMyAdmin Bringing MySQL to the web

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.

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.

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 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.

Skip the Queue. Check-in to hospital faster! Automated 911 for Non-ER Patients.

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

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

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

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.

Your self-hosted live video streaming and chat server.

A super fast Graph Database uses GraphBLAS under the hood for its sparse adjacency matrix graph representation. Our goal is to provide the best Knowledge Graph for LLM (GraphRAG).

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

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

A safe home for all your data

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

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

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

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

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

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

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.

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

PowerShell for every system!

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.

JavaScript SDK for writing applications using Dapr

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

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

.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.

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

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

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

Jupyter’s Next-Generation Notebook Interface.

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

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

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

Fission is a framework for serverless functions on Kubernetes.

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

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

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.

A framework for building native apps with React.

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

Fast and minimalist 3D viewer

Open-source observability for LLMs, based on OpenTelemetry

A linux based Virtual assistant on Artificial Intelligence in C. Find restaurants in an area, Fetch weather information of any place, send and read Emails, Google search, Youtube search, Play media files, Show calendar, etc.

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.

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

Web based translation tool with tight version control integration.

An open source marketing automation platform.

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

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

scikit-learn models hyperparameters tuning, using evolutionary 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.

Claude Code agent coordination skill for multi-agent task orchestration

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

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.

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

Distributed, high-performance SQL database

OSS alternative to Google Authenticator & Authy

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

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 faster Python type checker and language server written in Rust

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.

Query, provision and manage cloud, SaaS and identity resources using SQL.

A cross-platform UI framework for .NET

ClickHouse is a fast open-source OLAP database management system

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.

Core formulae for the Homebrew package manager

Model Context Protocol server for The Colony. Exposes 7 tools, 4 resources, and 3 prompts to MCP clients (Claude Desktop, Cursor, etc.).

A minimalist PDF creation library for Python

A Loyalty Card & Ticket Manager for Android

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

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.

A collaborative online office suite based on LibreOffice technology

A programming assignment submission system

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 to-do list application built in React and Electron.

Effortlessly install modern developer tools with easy-to-remember URLs.

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 typescript video-editing framework for the browser and Node

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

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.

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.

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

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.

An open-source, nonprofit activism network

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.

An ultralight service mesh for Kubernetes.

A list of 99 machine learning projects for anyone interested to learn from coding and building projects

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

Open-source repository containing structured Python and AI knowledge for the Py.AI website.

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

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.

Free and Open Source Reverse Engineering Platform powered by radare2

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

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

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

A GitHub bot to automate repeatedly tasks

Reliable components for building language runtimes

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 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.

The one step solution to get relief from your stress. Live a stress-free life by using our website.

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

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

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.

Roc is a toolkit for real-time audio streaming over the network.

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.

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

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

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

Downloads albums in bulk

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

Multi-platform 2D and 3D game engine

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

icalendar parser library for Python

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

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

An experimental PS1 Emulator made in c++ 20

Documentation for .NET

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

OpenWrt packages composing LibreMesh meta-firmware for wireless mesh networking

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.

Ruby on Rails application building framework

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

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.

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

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

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

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

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

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

A small, simple and immutable ORM to manage relational data in your Redux store.

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.

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

The parallel browser engine project

An extensible cross-language static code analyzer.

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

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

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

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.

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

An async-based GitHub API client library for .NET

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

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.

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

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

A Q&A platform software for teams and enterprises to launch community forum, knowledge base, and help center at ease.

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

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

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

Interactive learning platform using Python and Javascript with AngularJS

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.

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

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

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

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.

C compiler for the CLI platform

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

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

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.

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