Plasmo is a framework for building browser extensions for Chrome, Edge, Firefox, and other browsers using modern web technologies like React and TypeScript. It provides a bundler and development tools that handle the complexity of extension configuration, letting developers focus on writing extension code. Developers would use Plasmo to streamline the build and deployment process for cross-browser extensions without managing low-level bundler configuration themselves.

371 open issues · last updated Jul 21, 2026