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AddOpenVMM is a modular, cross-platform, general-purpose Virtual Machine Monitor (VMM), written in Rust.
Open VSX is an open-source registry for VS Code extensions. It can be used by any development environment that supports such extensions.
Open source container-based virtualization for Linux.
OpenVZ allows multiple secure, isolated Linux containers (also known as virtual private servers or virtual environments) to run on a single physical server. This technology enhances server utilization and ensures that applications do not conflict with each other.
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The OWF is a consortium of companies and non-profit organisations collaborating to drive global adoption of open, secure and interoperable digital wallet solutions as well as providing access to expertise and advice through our Government Advisory Council.
Bring any AI model into your terminal.
A fully decentralized fork of Warp. Six native AI protocols, third-party CLI agents as first-class Blocks, a built-in SSH + tmux host manager. Every credential, conversation and key stays on your machine.
Unlock your LLM's creativity. User-friendly WebUI for LLMs (Formerly Ollama WebUI)
Open WebUI is an extensible, self-hosted interface for AI that adapts to your workflow, all while operating entirely offline.
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI designed to operate entirely offline. It supports various LLM runners, including Ollama and OpenAI-compatible APIs. For more information, be sure to check out our Open WebUI Documentation.
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Open-Source Dictation Software (Free Download). Your voice is 3x faster than your keyboard. Voice-to-text dictation app with local (Nvidia Parakeet/Whisper) and cloud models (BYOK). Privacy-first and available cross-platform.
Open source voice-to-text assistant. Private by design. Write faster in every app.
Open Source Network Management System.
OpenWISP is a modular network management system built on top of OpenWRT (but designed to allow supporting multiple embedded operating systems) that allows managing and automating several aspects of IT network deployment, monitoring and management.
OpenWorkers is an open-source runtime for executing JavaScript in V8 isolates. It brings the Cloudflare Workers programming model to your own infrastructure.
An open-source alternative to Claude Cowork, powered by OpenCode.
OpenWork is an extensible, open-source “Claude Work” style system for knowledge workers. It’s a native desktop app that runs OpenCode under the hood, but presents it as a clean, guided workflow.
An open platform that extends upstream Kubernetes to Edge.
OpenYurt is the intelligent edge computing platform which aims to extend the Cloud Native ecosystem to edge computing and IoT scenarios. By making non-intrusive enhancements, it empowers customer to manage large scale edge computing workloads in different architecture (e.g., ARM and X86) in a native Kubernetes manner.
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Open Source Zero Trust Networking.
OpenZiti is the world’s most used and widely integrated open source secure networking platform. OpenZiti provides both zero trust security and overlay networking as pure open source software.
OpenZL delivers high compression ratios while preserving high speed, a level of performance that is out of reach for generic compressors.
OpenZL takes a description of your data and builds from it a specialized compressor optimized for your specific format. OpenZL consists of a core library and tools to generate specialized compressors — all compatible with a single universal decompressor. It is designed for engineers that deal with large quantities of specialized datasets (like AI workloads for example) and require high speed for their processing pipelines.
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The Open Source Startup Operating System. The Startup OS You've Been Missing.
Open source company management. Projects, goals, and processes in one place.
Hey there! In this book, we're going to build a small operating system from scratch, step by step.
You might get intimidated when you hear OS or kernel development, the basic functions of an OS (especially the kernel) are surprisingly simple. Even Linux, which is often cited as a huge open-source software, was only 8,413 lines in version 0.01. Today's Linux kernel is overwhelmingly large, but it started with a tiny codebase, just like your hobby project.
Open-source Event tracker tool for tech products.
Event tracker for tech products. Send events from your code and get push notifications.
Operational is a open-source Event tracking tool. Monitor signups, webhooks, cronjobs and more. Operational is a Open source alternative to Logsnag, another Event tracking tool in the same category.
Sophia is a modern transactional key-value / row storage library. How does it differ from other storages?
Sophia is RAM-Disk hybrid storage. It is designed to provide best possible on-disk performance without degradation in time. It has guaranteed O(1) worst case complexity for read, write and range scan operations.
Ollama for GitHub Copilot VS Code Extension. Run Ollama models with full tool and vision support inside GitHub Copilot Chat.
Opilot integrates the full Ollama ecosystem — local models, cloud models, and the Ollama model library — directly into VS Code's Copilot Chat interface. Your conversations never leave your machine when using local models, and you can switch between models without leaving the editor.
Create beautiful & open-source forms for free. An open-source form builder. It's an alternative to products like Typeform, JotForm, Tally etc.
pfsense fork - Your next Open Source Firewall ! Secure Your Network with ease. From Virtual Private Networking to Intrusion Detection, Best in class, FREE Open Source Project.
Related contents:
- How to Configure an OPNsense Dashboard @ bsmithio.
- Introduction à OPNsense : comment installer ce firewall ? @ IT-Connect :fr:.
- Une façon créative de bloquer les indésirables @ Richard Dern :fr:.
- Comprendre OPNsense : le pare-feu open source @ DevSecOps :fr:.
- OPNsense Transparent Filtering Bridge (v26.1) @ Home Network Guy's YouTube.
- your home router STILL SUCKS!! (use OPNsense instead) @ NetworkChuck's YouTube.
Self-hosted product analytics.
Optiprism is an opensource self-hosted product analytics system. Keep customer data safe on your own servers. Analyze and predict customer behavior. Optimize your product and increase users engagement.
Type-safe combinatorial CLI parser for TypeScript.
Express CLI constraints in code structure, not validation logic. Optique is a parsing library that focuses on extracting and validating command-line arguments. It doesn't dictate your application's structure, handle command execution, or provide scaffolding—it simply transforms command-line input into well-typed data structures.
A hyperparameter optimization framework. Optimize Your Optimization.
An open source hyperparameter optimization framework to automate hyperparameter search
AI-Native Open-Source Design Tool.
The world's first open-source AI-native vector design tool and the first to feature concurrent Agent Teams. Design-as-Code. Turn prompts into UI directly on the live canvas. A modern alternative to Pencil.
Serena is a powerful coding agent toolkit capable of turning an LLM into a fully-featured agent that works directly on your codebase. Unlike most other tools, it is not tied to an LLM, framework or an interface, making it easy to use it in a variety of ways.
Serena provides essential semantic code retrieval and editing tools that are akin to an IDE’s capabilities, extracting code entities at the symbol level and exploiting relational structure. When combined with an existing coding agent, these tools greatly enhance (token) efficiency.
Serena is free & open-source, enhancing the capabilities of LLMs you already have access to free of charge.
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search, everywhere. A resilient, innovative and open-source search experience to achieve seamless integration with your infrastructure and data.
Game Of Active Directory is a free pentest active directory LAB(s) project.
The purpose of this tool is to give pentesters a vulnerable Active directory environment ready to use to practice usual attack techniques. The idea behind this project is to give you an environment where you can try and train your pentest skills without having the pain to build all by yourself. This repository was build for pentest practice 🙂
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Data Mining, Fruitful and Fun
Open source machine learning and data visualization.
Build data analysis workflows visually, with a large, diverse toolbox.
Flash Anything. The most advanced custom recovery for Android
A feature-rich custom recovery for Android with the latest TWRP changes, built-in Magisk patching, password protection, fastboot workflows, and OTA-ready tooling.
The ultimate Object Relational Mapper for Node.js, Bun and Deno, offering seamless integration with a variety of popular databases. Orange ORM supports both TypeScript and JavaScript, including both CommonJS and ECMAScript.
ORAS works similarly to docker. It allows you to push (upload) and pull (download) things to and from an OCI Registry, and also handles login (authentication) and token flow (authorization). What ORAS does differently is shift the focus from container images to other types of artifacts.
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AI you can trust
Easily summarize emails, docs, articles, and videos across the web — without sacrificing your privacy
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Orbitiny Desktop Environment for Linux.
Built from the ground up using Qt and coded in C++, Orbitiny Desktop is a new, 100% portable, innovative and traditional but modern looking desktop environment for Linux. Innovative because it has features not seen in any other desktop environment before while keeping traditional aspects of computing alive (desktop icons, menus etc).
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Fast, light, simple Docker & Linux on macOS.
OrbStack is the fast, light, and easy way to run Docker containers and Linux. Develop at lightspeed with our Docker Desktop alternative.
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GitOps for Docker
Deploy and manage your services with ease, directly from your Git repository.
OrcaCD is a simple GitOps tool for Docker. It allows you to deploy your applications using Git as the source of truth. With OrcaCD, you can easily manage your Docker containers and keep them in sync with your Git repository.
task orchestration for coding agents. One goal. An ordered plan of agent tasks. Every runner, model and effort visible before you spend a token.
The planner reads your repo, asks about whatever you left vague, and hands back tasks you can rewrite — prompts, models, modes, dependencies, all of it. Then it runs one real coding-agent session per task, and completes a task only when that task's marker shows up in the output.
Multi-agent task orchestration for coding agents. Turn one goal into an ordered plan of tasks — each with its own runner, model and mode — then execute and verify the results.
Repack docker images to optimize for pulling speed.
This tool repacks a Docker image into a smaller, more efficient version that makes it significantly faster to pull. It does this by using a few different techniques such as removing redundant data and improving compression ratios.
Offline Hike, Bike, Trails and Navigation.
Organic Maps is a privacy-focused offline maps & GPS app for hiking, cycling, biking, and driving. Absolutely free. No ads. No tracking. Developed with love by the open-source community and the same people, who created MapsWithMe/Maps.Me app. Powered by OpenStreetMap data.
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A GNU Emacs major mode for keeping notes, authoring documents, computational notebooks, literate programming, maintaining to-do lists, planning projects, and more — in a fast and effective plain text system.
Org is a highly flexible structured plain text file format, composed of a few simple, yet versatile, structures — constructed to be both simple enough for the novice and powerful enough for the expert.
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Beautiful UI components built with Tailwind CSS and Next.js.
Origin UI is an extensive collection of copy-and-paste components for quickly building app UIs. It's free, open-source, and ready to drop into your projects.
Orion — A web browser designed from the ground-up. Native WebKit speed, compatibility with a wide selection of extensions, and absolute privacy — finally together in one browser that respects you.
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TypeScript ORM that feels like writing SQL.
Drizzle ORM is a TypeScript ORM for SQL databases designed with maximum type safety in mind. It comes with a drizzle-kit CLI companion for automatic SQL migrations generation. Drizzle ORM is meant to be a library, not a framework. It stays as an opt-in solution all the time at any levels. The ORM's main philosophy is "If you know SQL, you know Drizzle ORM". We follow the SQL-like syntax whenever possible, are strongly typed ground up, and fail at compile time, not in runtime.
Typesafe APIs Made Simple 🪄. Easy to build APIs that are end-to-end type-safe and adhere to OpenAPI standards.
oRPC is a powerful combination of RPC and OpenAPI, makes it easy to build APIs that are end-to-end type-safe and adhere to OpenAPI standards
OpenAPI to TypeScript Magic. Generate type-safe API clients from OpenAPI.
Transform your OpenAPI specs into type-safe clients, mocks, and validators. Stop writing boilerplate. Start shipping features.
Own your AI.
The native macOS harness for AI agents that run on your machine. Any model. Your files. Your memory. Free and open source.
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Tilde is a text editor for the console/terminal, which provides an intuitive interface for people accustomed to GUI environments such as Gnome, KDE and Windows. For example, the short-cut to copy the current selection is Control-C, and to paste the previously copied text the short-cut Control-V can be used. As another example, the File menu can be accessed by pressing Meta-F.
OSINT framework focused on gathering information from free tools or resources. The intention is to help people find free OSINT resources. Some of the sites included might require registration or offer more data for $$$, but you should be able to get at least a portion of the available information for no cost.
OSINT Community Open Source Intelligence. OSINT-FR is a global community, gathering experts and learners, willing to develop their knowledge on open source intelligence techniques.
Curated open-source intelligence tools for crypto forensics, digital investigations, and threat hunting — clean, fast, and field-ready.
OsmAnd is a navigation software based on OpenStreetMap.
OSMC is a free and open source media center built for the people, by the people.
Open Source Mano is an ETSI-hosted initiative to develop an Open Source NFV Management and Orchestration (MANO) software stack aligned with ETSI NFV. Two of the key components of the ETSI NFV architectural framework are the NFV Orchestrator and VNF Manager, known as NFV MANO. Additional layers, such as service orchestration are also required for operators to enable true NFV services. Open Source software can facilitate the implementation of an ETSI aligned NFV architecture, provide practical and essential feedback to the ETSI ISG NFV and increase the likelihood of interoperability among NFV implementations.
The OSPO Alliance’s platform for sharing and promoting world class materials on good governance for Open Source Program Offices.
Easily ask questions about your Linux, Windows, and macOS infrastructure.
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OSRD (Open Source Railway Designer) is an open source web application for railway infrastructure design, capacity analysis, timetabling and simulation and short term path request.
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Welcome! This is a book about multi-robot systems. Why? Because it's the future!
Robots are becoming more affordable, more capable, and more useful in many "real life" scenarios. As a result, we are seeing more and more robots that need to share spaces and work together to accomplish tasks. In this book, we will introduce the Robot Operating System 2 (ROS 2) as well as the Robot Middleware Framework (RMF), which is built on ROS 2 and tries to simplify the creation and operation of complex multi-robot systems.
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Architecture in. Software out. Spec-Driven Code Generation.
An open-source framework that turns architectural specs into working code. You write a specification, optionally lay out the architecture, and Ossature breaks it down into a build plan that gets executed step by step with an LLM doing the code generation under tight constraints. The specs are your source of truth, you review the plan before anything gets built, and when something breaks you fix that step and keep going instead of starting over.
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GOSa² est un outil en GPL pour gérer les comptes et les systèmes dans un annuaire LDAP. L'utilisation de GOsa² permet au administrateurs systèmes un gestion simple et efficace des utilisateurs, groupes, des clients lourds et légers, de leurs applications, téléphones, fax, liste de distributions et bien d'autres paramètres.
Self-hostable, privacy-focused website analytics.
Medama Analytics is an open-source project dedicated to providing self-hostable, cookie-free website analytics. With a lightweight tracker of less than 1KB, it aims to offer useful analytics while prioritising user privacy.