Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

JS code test for Klarna

Standard Go Project Layout

Coding assistant MCP for Claude Desktop

GitHub's official MCP Server

MCP server for understanding AWS spend

A Model Context Protocol server implementation for operations on AWS resources

Model Context Protocol Servers

GUI for DynamoDB Local or dynalite

Find secrets with Gitleaks 🔑

Master programming by recreating your favorite technologies from scratch.

Keep searching, reading webpages, reasoning until it finds the answer (or exceeding the token budget)

A maroto way to create PDFs. Maroto is inspired in Bootstrap and uses gofpdf. Fast and simple.

Codecrafters challenge: Make your own Git

DummyJSON.com provides different types of REST Endpoints filled with JSON data which you can use in developing the frontend with your favorite framework and library without worrying about writing a…

Validate and visualize dependencies. Your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

Run your GitHub Actions locally 🚀

A Go port of Ruby's dotenv library (Loads environment variables from .env files)

🔃 An ordered map in Go with amortized O(1) for Set, Get, Delete and Len.

Imaging is a simple image processing package for Go

Interactive prompt for command-line applications

real time face swap and one-click video deepfake with only a single image

Collection of comprehensive TypeScript libraries for Interaction with the Ethereum JSON RPC API and utility functions.

Stack trace visualizer

JavaScript image cropper.

High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.

Resize image in browser with high quality and high speed

Build full-stack apps on your own infrastructure.

Work seamlessly with partial mocks in TypeScript.

Simple GraphQL Client for JavaScript. Minimal. Extensible. Type Safe. Runs everywhere.