dev HTML Playground: Web IDE

dev HTML Playground lets you build, run and view HTML/CSS/JavaScript entirely on your iPhone. No computer required.

WHO IT’S FOR

• You want to start programming but don’t own a computer
• You want to build apps in spare moments on the train or sofa
• You want AI to write the code while you bring the ideas
• You want to show your kids how fun programming can be
• You want to quickly check HTML documents an AI wrote for you

FEATURES

Code Editor A syntax-highlighted editor for HTML, CSS and JavaScript with autosave and file management (add, rename, delete). Smart quotes and other typing “corrections” that break code are disabled.

Instant Preview Run your code with one tap. console.log output and errors appear in a built-in console, so you can debug entirely on your phone.

AI Integration A ready-made environment prompt for AIs like ChatGPT and Claude. Paste it, and the AI asks “What would you like to build?” — just answer in plain words. Bring the returned code in with one tap using “Paste & Replace All”. You can finish real apps with zero programming experience.

Safe Data Storage Every project ships with storage.js, a simple persistence library. Your apps’ data is stored safely and kept separate per project. It also works in regular browsers, so your creations are portable.

5 Templates

• Empty Project: start from a clean slate
• Basic Sample: learn the ropes with a counter and notes
• To-Do List: a practical task app
• Habit Calendar: a monthly habit tracker
• Game (NEON RUSH): a full neon mini-game demo

Add to Home Screen Register your apps as Home Screen icons via Shortcuts and launch them like regular apps.

Export Export as ZIP (for backup) or a single HTML file (for sharing). Send your work via AirDrop, save to Files, or continue editing on a Mac.

HTML Viewer Copy any HTML (like a document an AI wrote) and view it with one tap. Everything you view is kept in a history, and you can import it as a project to edit.

Built-in Browser A browser tab for research or chatting with AI sites, so the whole loop stays in one app.

Everything is free, with no ads. Your “I want to build something” — right in your pocket.