Skip to content
whatismyalternative

Leporello.js

Online JavaScript/TypeScript playground with a time-travel debugger

Visit Leporello.js

Leporello.js is an online JavaScript/TypeScript playground with a time-travel debugger. It offers example projects such as Fibonacci numbers, a Github API example, a TODO app, Ethereum data scraping, inline plotting, and JSX inspection. The project is funded by donations and mentions a Visual Studio Code plugin with TypeScript support.

12 alternatives to Leporello.js

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

  1. JavaScript playground for your desktop

    Covers 0 of 6 key features.

    Free plan
    61 out of 100 matchFree
  2. Simple, fast online code editor.

    Covers 0 of 6 key features.

    Free plan
    60 out of 100 matchContact sales
  3. Run and share code in dozens of languages — open source.

    Covers 0 of 6 key features and is open source.

    Free planOpen source
    58 out of 100 matchContact sales
  4. The JavaScript Code Quality and Coverage Tool

    Covers 0 of 6 key features and is open source.

    Free planOpen source
    57 out of 100 matchFree
  5. Live Updating TypeScript/ES6/JavaScript Playground

    Covers 0 of 6 key features.

    56 out of 100 match—
  6. Play with code. Learn by building. Create with AI.

    Covers 0 of 6 key features.

    Free plan
    56 out of 100 matchFree
  7. React, Tailwind, and code Playground

    Covers 0 of 6 key features.

    Free plan
    54 out of 100 matchFree
  8. A browser-based notebook programming environment.

    Covers 0 of 6 key features.

    52 out of 100 match—
  9. Browser console tool for debugging on mobile devices

    Covers 0 of 6 key features and is open source.

    Open source
    52 out of 100 match—
  10. Helping you build the web

    Covers 0 of 6 key features.

    Free plan
    45 out of 100 matchFree
  11. HTML, CSS, JavaScript editor playground for designers & developers

    Covers 0 of 6 key features.

    Free plan
    41 out of 100 matchFree
  12. Frictionless development in your browser

    Covers 0 of 6 key features.

    Free plan
    37 out of 100 match$10/mo