Quarkus: Supersonic Subatomic Java.

A simple GUI calculator🧮 built using C++

PHPMD is a spin-off project of PHP Depend and aims to be a PHP equivalent of the well known Java tool PMD. PHPMD can be seen as an user friendly frontend application for the raw metrics stream measured by PHP Depend.

An open source time-series database for fast ingest and SQL queries

Go implementation of Ethereum proof of stake

The Meson Build System

Shōgun

Application for managing recipes, planning meals, building shopping lists and much much more!

FAT Golang Reference Implementation & Daemon

The Symfony PHP framework

🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.

Open Source toolpath generator for 3D printers

🦋 Rakudo – Raku on MoarVM, JVM, and JS

An open source trusted cloud native registry project that stores, signs, and scans content.

Highly-available Distributed Fault-tolerant Runtime

A mighty CSS linter that helps you avoid errors and enforce conventions.

Java Bindings for V8

Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.

A cloud-native vector database, storage for next generation AI applications

GlobaLeaks is free, open source software enabling anyone to easily set up and maintain a secure whistleblowing platform.

Diablo build for modern operating systems

Free and open log management

A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3 and Oracle, designed to be flexible, portable, and fun to use.

Next generation distributed, event-driven, parallel config management!

A Django content management system focused on flexibility and user experience

Windows GUI Automation with Python (based on text properties)

Pug – robust, elegant, feature rich template engine for Node.js

Simple, resilient multi-host containers networking and more.

Official Creative Commons plugin for licensing your content. With Creative Commons licenses, keep your copyright AND share your creativity.

Automated auditing, performance metrics, and best practices for the web.

🚀 GraphQL API for WordPress

Slide is an open-source, ad-free Reddit browser for Android.

YugabyteDB - the cloud native distributed SQL database for mission-critical applications.

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

🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.

The Python package installer

The most popular open source electronic health records and medical practice management solution.

Spreading Thankfulness in Open Source.

Qiskit is an open-source SDK for working with quantum computers at the level of extended quantum circuits, operators, and primitives.

The best C# command line parser that brings standardized *nix getopt style, for .NET. Includes F# support

mocking library for Kotlin

Convert LaTeX documents into beautiful responsive web pages using LaTeXML.

A modern and responsive react timeline component.

mlpack: a fast, header-only C++ machine learning library

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

MlFinLab helps portfolio managers and traders who want to leverage the power of machine learning by providing reproducible, interpretable, and easy to use tools.

STUMPY is a powerful and scalable Python library for modern time series analysis

For empowering community 🌱

Apache Doris is an easy-to-use, high performance and unified analytics database.

World's largest Contributor driven code dataset | Used in Quark Search Engine, @OpenGenus IQ, OpenGenus Visual Project

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

Free universal database tool and SQL client

Open source Firebase + Heroku to develop, scale and secure serverless apps on Kubernetes

Brave browser for Android, iOS, Linux, macOS, Windows.

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

Isolated React component development environment with a living style guide

Build Container Images In Kubernetes

TLS/SSL and crypto library

Terragrunt is a thin wrapper for Terraform that provides extra tools for working with multiple Terraform modules.

An implementation of the TLS/SSL protocols

a delightful machine learning tool that allows you to train, test, and use models without writing code

OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

ML.NET is an open source and cross-platform machine learning framework for .NET.

A friendly programming language from the future

The PHP Unit Testing framework.

StackStorm (aka "IFTTT for Ops") is event-driven automation for auto-remediation, incident responses, troubleshooting, deployments, and more for DevOps and SREs. Includes rules engine, workflow, 160 integration packs with 6000+ actions (see https://exchange.stackstorm.org) and ChatOps. Installer at https://docs.stackstorm.com/install/index.html

Coq is a formal proof management system. It provides a formal language to write mathematical definitions, executable algorithms and theorems together with an environment for semi-interactive development of machine-checked proofs.

Web application providing an intuitive user experience to databases.

SVG library for React Native, React Native Web, and plain React web projects.

Declarative Continuous Deployment for Kubernetes

All-in-one infrastructure for building search, recommendations, and RAG. Trieve combines search language models with tools for tuning ranking and relevance.

Universal dependency automation tool.

A libre lightweight streaming front-end for Android.

📱 Nextcloud Android app

Project Interaction Library for Emacs

A lightning-fast search API that fits effortlessly into your apps, websites, and workflow

SVG icons for popular brands

Reactive Microservices for the JVM

Tensors and Dynamic neural networks in Python with strong GPU acceleration

💰 Go (golang) client for the blockchair.com API

The Data Transfer Project makes it easy for people to transfer their data between online service providers. We are establishing a common framework, including data models and protocols, to enable direct transfer of data both into and out of participating online service providers.

An open-source, web-based viewer for zoomable images, implemented in pure JavaScript.

💬 Never browse alone again

Remote Virtual Desktops Manager

OpenVDB - Sparse volume data structure and tools

Backstage is an open platform for building developer portals

Exploit Development and Reverse Engineering with GDB Made Easy

🏗 Build container images for your Java applications.

:zap: Walt is a JavaScript-like syntax for WebAssembly text format :zap:

Terminal bandwidth utilization tool

The pluggable natural language linter for text and markdown.

A python interface for interacting with the Ethereum blockchain and ecosystem.

💫 NClient is an automatic type-safe .Net HTTP client that allows you to call web service API methods using annotated interfaces or controllers without boilerplate code.

Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.

Ward is a modern test framework for Python with a focus on productivity and readability.

AI + Data, online. https://vespa.ai

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

Pretrain, finetune and deploy AI models on multiple GPUs, TPUs with zero code changes.

🖥️ Desktop Syncing Client for ownCloud

⚡ Serverless Framework – Use AWS Lambda and other managed cloud services to build apps that auto-scale, cost nothing when idle, and boast radically low maintenance.

A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.

Home of the Joomla! Content Management System

Generative Art Marketplace

Powerful .NET library for benchmarking

Kedro is a toolbox for production-ready data science. It uses software engineering best practices to help you create data engineering and data science pipelines that are reproducible, maintainable, and modular.

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

The Pants Build System

Lightweight CLI download accelerator

Local development against a remote Kubernetes or OpenShift cluster

Run multiple websites using the same Laravel installation while keeping tenant specific data separated for fully independent multi-domain setups, previously github.com/hyn/multi-tenant

A Vim-like interface for Firefox, inspired by Vimperator/Pentadactyl.

Automated Machine Learning with scikit-learn

Cron for NodeJS.

Slack Developer Kit for Node.js

Official repository for IPython itself. Other repos in the IPython organization contain things like the website, documentation builds, etc.

Modern C++14 library for the development of real-time graphical applications

Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD

RGB Driver for Linux

Open Source Computer Vision Library

Python-based continuous integration testing framework; your pull requests are more than welcome!

🐠 Babel is a compiler for writing next generation JavaScript.

A modern open source rendering engine for animation and visual effects

Linear algebra library for Rust.

☁️ Nextcloud server, a safe home for all your data

Grow Open Source

Fast and low overhead web framework, for Node.js

Python reference implementation of The Update Framework (TUF)

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

Reatom - the ultimate state manager

Flutter database for super-fast Dart object persistence

General purpose plain text editor for macOS. Widely known for its live collaboration feature.

小程序组件化开发框架

📲cim(cross IM) 适用于开发者的分布式即时通讯系统

The open-source alert management and AIOps platform

Universal Radio Hacker: Investigate Wireless Protocols Like A Boss

The React Framework

Dynamic Instrumentation Tool Platform

Provision remote development environments via Terraform

The easiest way to use Machine Learning. Mix and match underlying ML libraries and data set sources. Generate new datasets or modify existing ones with ease.

HTML Standard

Swagger 2.0 implementation for go

SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

Astronomy and astrophysics core library

The core of our monitoring platform with a powerful configuration language and REST API.

New Framework Components for Vue.js 2

Graph database optimized for fast analysis and real-time data processing. It is provided as an extension to PostgreSQL.

Open-source keyboard firmware for Atmel AVR and Arm USB families

Mumble is an open-source, low-latency, high quality voice chat software.

Statsmodels: statistical modeling and econometrics in Python

Light-weight system monitor for X, Wayland (sort of), and other things, too

The official CLI for Amazon EKS

🛒 Solidus, the open-source eCommerce framework for industry trailblazers.

Open Source Continuous File Synchronization

Self hosted FLOSS fitness/workout, nutrition and weight tracker

Storybook is a frontend workshop for building UI components and pages in isolation. Made for UI development, testing, and documentation.

ZenML 🙏: Build portable, production-ready MLOps pipelines. https://zenml.io.

AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.

Modeling language for Mathematical Optimization (linear, mixed-integer, conic, semidefinite, nonlinear)

Bitwarden client applications (web, browser extension, desktop, and cli)