Master programming by recreating your favorite technologies from scratch.

A collective list of free APIs

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

The library for web and native user interfaces.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

A curated list of awesome Go frameworks, libraries and software

Get up and running with Kimi-K2.5, GLM-4.7, DeepSeek, gpt-oss, Qwen, Gemma and other models.

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

Command-line program to download videos from YouTube.com and other video sites

The React Framework

Display and control your Android device

🦜🔗 The platform for reliable agents.

Build cross-platform desktop apps with JavaScript, HTML, and CSS

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Godot Engine – Multi-platform 2D and 3D game engine

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

A modern runtime for JavaScript and TypeScript.

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

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

Vim-fork focused on extensibility and usability

FastAPI framework, high performance, easy to learn, fast to code, ready for production

LLM inference in C/C++

Robust Speech Recognition via Large-Scale Weak Supervision

A utility-first CSS framework for rapid UI development.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for …