Catalog

openedx-platform is an open-source learning management system (LMS) and course authoring platform for building and delivering online courses at any scale.

OpenProject is an open-source web-based project management app for planning, agile boards, Gantt charts and issue tracking, self-hostable as a Jira alternative.

Organic Maps is a free, offline maps and GPS navigation app for Android and iOS, built for hikers, cyclists and travellers who want privacy without ads or tracking.

OpenToonz is an open-source, full-featured 2D animation desktop app for creating hand-drawn and cut-out animation, based on Studio Ghibli's Toonz production tool.

OroCRM is an open-source CRM application for building a 360° customer view, managing sales pipelines, accounts, contacts and marketing campaigns.

Open WebUI is a self-hosted, extensible AI chat interface that connects Ollama and any OpenAI-compatible API in one place for local and cloud models.

Onlook is an open-source visual code editor for designing and editing Next.js and Tailwind CSS websites with AI directly in the browser.

OsmAnd is a mobile maps and navigation app for Android and iOS that works fully offline, using free OpenStreetMap data for turn-by-turn routing.

OBS Studio is free, open-source software for live streaming and screen recording, letting you capture, composite, encode and stream video.

OCRmyPDF is an open-source command-line tool that adds a searchable OCR text layer to scanned PDF files, turning them into PDF/A documents.

Notepad++ is a free, open-source source code editor for Windows, a Notepad replacement with syntax highlighting for many programming and natural languages.

Ollama is an open-source AI tool for running open models such as Gemma, DeepSeek, Qwen and gpt-oss locally or in the cloud, with a CLI, REST API and Python and JavaScript libraries.

obsidian-releases is the official repository hosting Obsidian's public desktop app releases and the community plugin and theme directories for the Markdown note-taking app.

UI UX Pro Max is an open-source AI skill for coding agents that supplies design intelligence, so you can build professional UI/UX across platforms and frameworks.

Odoo is an open-source web-based business application suite covering CRM, accounting, inventory, eCommerce, HR and manufacturing in one ERP system.

Glances is an open-source cross-platform system monitoring CLI tool, a top/htop alternative with a web UI, REST API and MCP server for CPU, memory, disk, network and containers.

Superpowers is an open-source agentic skills framework and software development methodology for AI coding agents, using composable skills to plan, build and review code.

pdf.js is an open-source PDF reader library written in JavaScript that parses and renders PDF files in the browser using HTML5, under the Apache-2.0 license.

firefox-ios is Mozilla's open-source Firefox web browser for iPhone and iPad, a Swift monorepo that also includes the Focus iOS privacy browser.

three.js is an MIT-licensed JavaScript 3D library for building WebGL and WebGPU scenes in the browser with a lightweight, easy-to-use API.