403 tools in 50 categories

CodePen

CodePen is an online community and development environment for testing and showcasing user-created HTML, CSS, and JavaScript code snippets.

Category
Development & Coding
Pricing
Freemium
Platforms
web
Website
CodePen official site

Other development & coding tools

  • VS Code — Free, open-source code editor with debugging, Git integration, and extensive extension marketplace.
  • Lovable — Lovable is an AI-powered platform that enables users to create web applications and websites by providing natural language descriptions, eliminating the need for extensive coding.
  • Next.js — Next.js is an open-source React framework for building full-stack web applications, supporting server-side rendering, static site generation, and API routes. It is developed and maintained by Vercel.
  • Goldfish — Goldfish is a terminal-based AI coding assistant that runs locally in your shell, helping developers write, debug, and understand code directly from the command line without leaving their workflow.
  • Locomotive Scroll — A lightweight JavaScript library for smooth scrolling, in-view detection, and parallax effects, built on top of Lenis.
  • Animated Buttons (Colorion) — A copy-and-paste library of pure-CSS animated buttons from the Colorion family of tools. Each snippet is self-contained, MIT licensed, needs no JavaScript, and respects prefers-reduced-motion.
  • BagUI — An open-source registry of shadcn/ui components, animated sections, and production-ready blocks, including navbars, heroes, footers, pricing tables, and CTAs.
  • BrowserStack — BrowserStack is a cloud-based web and mobile testing platform that lets developers and QA teams test their applications across real browsers, devices, and operating systems without maintaining an in-house device lab.