Master programming by recreating your favorite technologies from scratch.

A collective list of free APIs

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

Coding articles to level up your development skills

21 Lessons, Get Started Building with Generative AI

A modern runtime for JavaScript and TypeScript.

✅ The Node.js best practices list (July 2024)

A collection of (mostly) technical things every software developer should know about

A GUI client for Windows, Linux and macOS, support Xray and sing-box and others

JavaScript API for Chrome and Firefox

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

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

A fancy self-hosted monitoring tool

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Next generation frontend tooling. It's fast!

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

The fastest path to AI-powered full stack observability, even for lean teams.

GPT4All: Run Local LLMs on Any Device. Open-source and available for commercial use.

VS Code in the browser

An open-source cross-platform alternative to AirDrop

Hunt down social media accounts by username across social networks

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

The HTML Presentation Framework

JavaScript animation engine

The official gpt4free repository | various collection of powerful language models | o4, o3 and deepseek r1, gpt-4.1, gemini 2.5

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.

Iconic font aggregator, collection, & patcher. 3,600+ icons, 50+ patched fonts: Hack, Source Code Pro, more. Glyph collections: Font Awesome, Material Design Icons, Octicons, & more

Open Source realtime backend in 1 file

Prettier is an opinionated code formatter.