Master programming by recreating your favorite technologies from scratch.

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

Curated list of project-based tutorials

All Algorithms implemented in Python

Linux kernel source tree

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

A feature-rich command-line audio/video downloader

Empowering everyone to build reliable and efficient software.

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

JavaScript API for Chrome and Firefox

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

Node Version Manager - POSIX-compliant bash script to manage multiple active node.js versions

Python tool for converting files and office documents to Markdown.

An open-source cross-platform alternative to AirDrop

RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

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

Build like a team of hundreds_

🤖 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.

An open-source, self-hostable PaaS alternative to Vercel, Heroku and Netlify that lets you easily deploy static sites, databases, web applications and more than 280 one-click services on your own s…

An AI Hedge Fund Team

🆙 Upscayl - #1 Free and Open Source AI Image Upscaler for Linux, MacOS and Windows.

🚀 The easiest way to automate building and releasing your iOS and Android apps

🔊 Text-Prompted Generative Audio Model

⚡️ Express inspired web framework written in Go

Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io

ToolJet is the open-source foundation of ToolJet AI - the AI-native platform for building internal tools, dashboard, business applications, workflows and AI agents 🚀

Rust-based platform for the Web