dev HTML Playground: Web IDE
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Description
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.
7 Templates
Game (Crowd Rush): the real version of that "grow your crowd" ad game
Game (Pull the Pin): the real version of that pull-the-pin puzzle from the ads
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.
About your AI
Works with any AI you like — ChatGPT, Gemini, Claude and more. Free AIs are fine; smarter ones just nail it on the first try more often. And if something breaks, dHP catches the error for you — copy it, paste it back to your AI, and it gets fixed.
Everything is free, with no ads. Your "I want to build something" — right in your pocket.