A collective list of free APIs

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

An enterprise-class UI design language and React UI library

web development for the rest of us

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

Model Context Protocol Servers

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

Simple HTML5 Charts using the <canvas> tag

Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.

All Algorithms implemented in Java

🧑‍🏫 60+ Implementations/tutorials of deep learning papers with side-by-side notes 📝; including transformers (original, xl, switch, feedback, vit, ...), optimizers (adam, adabelief, sophia, ...), ga…

Curated list of design and UI resources from stock photos, web templates, CSS frameworks, UI libraries, tools and much more

Easy to maintain open source documentation websites.

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

Financial data platform for analysts, quants and AI agents.

The web framework for content-driven websites. ⭐️ Star to support our work!

Build like a team of hundreds_

📝A simple and elegant markdown editor, available for Linux, macOS and Windows.

Updated list of public BitTorrent trackers

🔍 A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM.

The all-in-one Desktop & Docker AI application with built-in RAG, AI agents, No-code agent builder, MCP compatibility, and more.

Fine-tuning & Reinforcement Learning for LLMs. 🦥 Train OpenAI gpt-oss, DeepSeek-R1, Qwen3, Gemma 3, TTS 2x faster with 70% less VRAM.

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

Odoo. Open Source Apps To Grow Your Business.

Python Data Science Handbook: full text in Jupyter Notebooks

The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data 📊