A collective list of free APIs

Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

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

12 weeks, 26 lessons, 52 quizzes, classic Machine Learning for all

Independent technology for modern publishing, memberships, subscriptions and newsletters.

The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

Developer-first error tracking and performance monitoring

🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

The best design tools and plugins for everything 👉

📙 Amazon Web Services — a practical guide

Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.

🌈 React for interactive command-line apps

Send push notifications to your phone or desktop using PUT/POST

Microsoft REST API Guidelines

From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

A beautiful replacement for JavaScript's "alert"

🐦 ⚡ Bluebird is a full featured promise library with unmatched performance.

A pure node.js JavaScript Client implementing the MySQL protocol.

Build terminal dashboards using ascii/ansi art and javascript

A collection of 100+ specialized Claude Code subagents covering a wide range of development use cases

Better Markdown Parser in PHP

HTTP API design guide extracted from work on the Heroku Platform API

Must-watch videos about javascript

DataLoader is a generic utility to be used as part of your application's data fetching layer to provide a consistent API over various backends and reduce requests to those backends via batching and…

The Generative UI framework

🧠 Cognitive load is what matters

A fast,scalable,distributed game server framework for Node.js.

Open-source components, blocks, and AI agents designed to speed up your workflow. Import them seamlessly into your favorite tools through Registry and MCPs.

An implementation of GraphQL for Go / Golang

PHP package for JWT