JavaScript Coding Editor & IDE vs NearbiJSX

Run JavaScript and TypeScript on Node.js anywhere—100% Offline. The most powerful mobile IDE for JS and TS.  Features a built-in compiler, console, and DOM WebView. No server, no internet, no limits. Whether you are a professional developer, a student, or a hobbyist, JavaScript CodePad will help you practice and improve your coding skills anytime, anywhere. Built in tsc compiler transpiles your TypeScript code to JavaScript offline. Use the WebView mode to access the built-in Web Browser Window and DOM interface. Combine HTML, CSS, and JavaScript and learn building Web apps. Organise your code into modules and run multiple JS files using Node.js as a runtime (Internet connection required). You can run, execute, and evaluate JS code and programs from this app. Lightweight app with full JavaScript syntax highlighting, code completion and editor actions like undo, redo, comment lines, and indent selection to enhance your developer productivity. Enhanced productivity with live JS and TS code analysis as you type. Catch errors before you run the code. Built-in AI Assistant, whenever you get an error in your code, AI can suggest how to resolve it. AI Assistant can also refactor your code, clean it up, check it for bugs, write comments and documentation strings or just explain it. Blazing fast, all single script and Web View code is ran directly on the embedded node.js runtime or built in Web browser. Enhance your programming and JavaScript skills by solving built-in coding problems. Learn JavaScript with the MDN tutorial. Become a JavaScript coding master. Learn TypeScript with the official TypeScript handbook. Test your JavaScript and TypeScript knowledge, the app will tell you if you are writing valid JavaScript. With JavaScript CodePad, you can: - Write and execute JavaScript code with syntax highlighting and auto-indentation. - Run and compile TypeScript code and scripts - Test and debug your code with the built-in console and error messages. - Share and load your code snippets for later use - Customised keyboard with special keys and shortcuts for JavaScript and TypeScript - Code completion - Code formatting - Code linting - Solve built-in coding challenges - Access JavaScript and TypeScript tutorial and library reference from the app - Learn new concepts and techniques - Write HTML, CSS and JS code and run it in a built-in WebView - Run multiple JS files Download it today and unleash your creativity with the most popular programming language in the world. Note that certain features like Code completion, WebView mode and project mode require paid Developer upgrade.

NearbiJSX is a universal app for running, saving, and managing AI-generated JSX artifacts on iPhone, iPad, and Mac. Copy a JSX artifact from your AI assistant, paste it into the app, and see it render instantly. No Xcode, no terminal, no development environment needed — just paste and run. Key Features - No Sign-Up Required — No account, no email, no login. Install and use instantly - Instant JSX Preview — Paste AI-generated JSX and see it render immediately with zoom controls (50%–200%) - AI Code Generation — Generate JSX directly in-app using your own API key (ChatGPT, Gemini, or GitHub Models free tier) - Code Editor — Edit JSX with CodeMirror 6, featuring syntax highlighting, JSX/TypeScript support, bracket matching, fold gutters, dark mode, and live test-run before saving - Save & Organize — Folders with color coding, tags, and favorites for your artifact library - Search — Full multi-token search across all saved files - Weather-Aware Home Screen — Personalized greeting with local weather data - Nearby Share — Send and receive JSX files directly between devices via local Wi-Fi - NearbiDoc Integration — Works alongside the NearbiDoc sister app for document management - Export — Save as JSX source files - iCloud Sync — Seamlessly sync your collection across iPhone, iPad, and Mac - 22 interface languages supported Bundled Libraries (Offline, No Downloads) NearbiJSX bundles the most popular libraries used in AI-generated artifacts — all offline, no CDN needed: - React 18 & Tailwind CSS 3 - Sucrase (fast JSX transpiler) & Babel - shadcn/ui components (Button, Card, Alert, Badge, Input, Dialog, and more) - Lucide React icons - Recharts (charts & graphs) - Lodash Your AI artifacts will look and work exactly as intended. How It Works 1. Paste JSX from your AI assistant — or generate it directly in-app 2. NearbiJSX transpiles (via Sucrase) and renders it instantly 3. Organize with folders, tags, and favorites 4. Export or share with nearby devices AI Code Generation Bring your own API key for ChatGPT, Gemini, or Anthropic. GitHub Models is also available with free daily limits — no API key purchase needed. Keys are stored locally in your device's Keychain and are never sent to our servers. Secure by Design All JSX runs in a sandboxed environment. Network calls, storage access, and dangerous APIs are blocked before your code executes. No data leaves your device unless you choose to export or share. Free Features JSX rendering, code editor, AI generation, and basic organization are all free. Free tier includes 1 folder, 2 files per folder, and 1 favorite. Pro Upgrade (One-Time Purchase, No Subscription) - Unlimited folders and unlimited files per folder - Up to 4 favorites - iCloud sync across devices - Nearby Share (P2P file transfer) - JSX export - Ad removal (iOS) - Pro editor on iPad + Mac (Live Preview, Code Outline, Smart Autocomplete) - App skins (Terminal, Retro Pop) NearbiJSX does not collect user data. All files are stored locally on your device or in your personal iCloud.