App Overview

JavaScript Coding Editor & IDE icon

JavaScript Coding Editor & IDE

Cloudbit d.o.o. · Developer Tools

Run JavaScript and TypeScript on Node.js anywhere—100% Offline.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.3
99 ratings · Top 30%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

Build your own version

Build Kit

Make this idea yours

A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

Add to a Remix

Combine features and design from your favorite apps.

Kit ready. Verify your email to download it.

What's included18 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
Preview a sample Build Kit No email needed

Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for JavaScript Coding Editor & IDE: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Enhance with features like debugging and version control.

Assumption to check: Limited functionality compared to desktop IDEs

Validate with people who use this workflow before building.

Hypothesis 2

Optimize the code execution engine for better performance.

Assumption to check: Performance issues with larger codebases

Validate with people who use this workflow before building.

Hypothesis 3

Introduce real-time collaboration for coding with peers.

Assumption to check: Lack of collaboration features

Validate with people who use this workflow before building.

Hypothesis 4

Streamline the interface for a cleaner coding experience.

Assumption to check: User interface can be cluttered

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

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.

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.