Extension.js Studio

Scaffold a cross-browser Manifest V3 extension for Chrome, Edge, Firefox and Safari with no config.

Extension.js Studio — scaffold a cross-browser Manifest V3 extension for Chrome, Edge, Firefox and Safari with no config

How to use Extension.js Studio

  1. Name your extension and pick a framework
  2. Choose target browsers, features and permissions
  3. Preview the generated manifest, package and source files
  4. Download the scaffold and run npm run dev

Features

  • Real MV3 manifest, package.json and source scaffold
  • 7 frameworks from JavaScript to React, Vue, Svelte and Preact
  • 6 browser targets with the real CLI flags
  • 10 Extension.js CLI commands with copy buttons
  • Store-ready ZIP build command included

Frequently asked questions

Is it free?

Yes, unlimited.

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