Resources

MDN Web Docs freeThe reference. If MDN and a tutorial disagree, MDN is right. web.dev freeGoogle's guides on performance, accessibility, and modern web patterns. W3Schools freeQuick syntax lookups and try-it-yourself sandboxes for beginners. Google Fonts freeEvery typeface on this site lives here. Pair, preview, self-host. CodePen freeFront-end playground and the best place to steal ideas ethically. JSFiddle freeMinimal HTML/CSS/JS scratchpad for isolating a bug fast. Pastebin freeShare raw code and configs without ceremony. Can I Use freeBrowser support tables before you ship that shiny CSS feature. Three.js free3D in the browser. Every game on this site runs on it. CSS-Tricks freeDeep, practical CSS writing. The flexbox and grid guides are canon. Firebase Hosting free tierWhere this site lives. One CLI command to deploy a static site. Coolors freePalette generation when you need colors that agree with each other.

Claude free tierAnthropic's assistant. Co-author of most of what you see here. Google AI Studio freePrototype with Gemini models, generous free API tier included. ChatGPT free tierOpenAI's assistant. Great second opinion when models disagree. Google Magenta freeOpen-source ML for music and art. Inspired the audio tools here. Hugging Face freeThe open model hub: try, download, and run community AI models. Ollama freeRun capable LLMs locally on your own machine with one command. LM Studio freeDesktop app for running local models with a real GUI. Easiest on-ramp to offline AI. Open WebUI freeSelf-hosted ChatGPT-style front end for Ollama and any OpenAI-compatible API. Text Generation WebUI freeThe power user's local LLM interface. Extensions, characters, fine control. ComfyUI freeNode-based image generation. Build diffusion pipelines like patch cables. Automatic1111 freeThe classic Stable Diffusion WebUI. Still the fastest way to start generating. n8n free self-hostVisual automation builder. Wire AI models into real workflows without code. OpenRouter free tierOne API key, every model. Includes genuinely free model endpoints. Perplexity free tierAI search with citations. Good when you need sources, not vibes. Pinokio freeOne-click installer for local AI apps. Skips the dependency nightmare. AnythingLLM freeTurn your own documents into a private, local RAG chatbot. Anthropic Academy freePrompting and building with Claude, from the source. GitHub Copilot free tierAutocomplete for code with a free tier for casual builders. Google Labs freeExperimental AI toys and tools before they graduate. LM Arena freeBlind-compare frontier models and see live leaderboards.