AppYonder

Simple JavaScript

YUKI TANAIKE

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Get it free on the App StoreOpens Apple's App Store

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About this app

“Keen to try out some code while you’re on the go?” This app is a simple JavaScript editor and runtime built for your smartphone. It comes with a powerful code editor with syntax highlighting, so you can write and run JavaScript code straight away. It’s great for everything from learning JavaScript to practical coding and testing. Common use cases include: * Learning JavaScript * Programming practice * Learning web development * Studying algorithms * Testing code snippets * Checking sample code works properly * Taking JavaScript notes * Creating scripts * Testing functions * Writing code for technical blogs * Training sessions and workshops * Building prototypes * Organising code snippets * Mucking around with new ideas * Setting up a simple testing environment while developing JavaScript can be used in loads of different ways, and this app helps you quickly write, test and organise your code. If you’re after a JavaScript editor and runtime, give it a go. ■ Features • Intuitive Interface Simple tools ought to be easy to use. The editor is designed to be fast, responsive and comfortable for everyday coding. • Run Code Instantly Execute JavaScript code with a single tap. See the output and any error messages straight away. • Code Auto Completion Built-in code completion helps you write code more efficiently. • Code Formatting Automatically format your code to improve readability and keep a clean coding style. • Find and Replace Search and replace text within your code quickly and easily. • Code Folding Collapse and expand code blocks to make large files easier to navigate. • Easy Cursor Navigation Move the cursor using directional controls for more precise editing. • Automatic Saving Your code is automatically saved while you work, so you never have to worry about losing changes. • Ready to Use No account registration required. Start coding straight after installation. • Export and Share Export and share your code with others. Handy for backups and editing on other devices. • Dark Theme Support Supports dark mode for comfortable coding, day or night.

What's new

Version 1.2.1 · Nov 3, 2026

• Added support for macOS. • You can now link your purchase to an account and carry it over to another device or to the Mac version. • You can now share via a URL. • Made several usability improvements.

In-app purchases

The most popular purchases on the App Store.

  • Simple JavaScript Pro (Annual)Subscription$35.00 / year
  • Simple JavaScript Pro (Monthly)Subscription$3.99 / month

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