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RunJS

JavaScript playground for your desktop

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RunJS is a desktop application that serves as a JavaScript scratchpad. It runs code instantly as you type, supports both Node.js and browser APIs, and allows you to install npm packages. It is used by developers for prototyping and debugging, and by educators and students for learning JavaScript. The app is self-funded, independent, and developed by a single person.

12 alternatives to RunJS

Ranked by how well each tool replaces RunJS: shared features, audience, price and popularity.

  1. JSitor

    Simple, fast online code editor.

    Covers 0 of 15 key features.

    Free plan
    66 out of 100 matchContact sales

  2. StackBlitz

    Instant Dev Environments | Click. Code. Done.

    Covers 0 of 15 key features.

    Free plan
    60 out of 100 matchContact sales

  3. JSLint

    The JavaScript Code Quality and Coverage Tool

    Covers 0 of 15 key features and is open source.

    Free planOpen source
    60 out of 100 matchFree

  4. CoffeeScript

    A little language that compiles into JavaScript

    Covers 2 of 15 key features and is open source.

    Open source
    59 out of 100 match—

  5. Brackets

    Now Phoenix Code | Free Open Source Code Editor with Live Preview

    Covers 2 of 15 key features and is open source.

    Free planOpen source
    59 out of 100 matchContact sales

  6. Leporello.js

    Online JavaScript/TypeScript playground with a time-travel debugger

    Covers 0 of 15 key features.

    Free plan
    59 out of 100 matchFree

  7. .NET

    The modern, innovative, open-source programming language for building all your apps.

    Covers 1 of 15 key features and is open source.

    Free planOpen source
    58 out of 100 matchFree

  8. glot.io

    Run and share code in dozens of languages — open source.

    Covers 0 of 15 key features and is open source.

    Free planOpen source
    57 out of 100 matchContact sales

  9. Hyper

    A terminal built on web technologies

    Covers 2 of 15 key features and is open source.

    Free planOpen source
    56 out of 100 matchContact sales

  10. Codewich

    Live Updating TypeScript/ES6/JavaScript Playground

    Covers 1 of 15 key features.

    56 out of 100 match—

  11. OneCompiler

    Write, run and share code online with a free online compiler supporting 110+ languages and

    Covers 1 of 15 key features.

    Free plan
    56 out of 100 matchFree

  12. Ace (Ajax Code Editor)

    The High Performance Code Editor for the Web

    Covers 0 of 15 key features and is open source.

    Open source
    54 out of 100 match—