Postmaster

Chrome extension for an advanced postMessage devtools panel.

• Supports message logging between windows, iframes, and MessageChannels
• Includes filtering, searching, sorting, and more. Does not retain or store any data.

Download from the Chrome web store here: https://chromewebstore.google.com/detail/postmaster/nbbpoelfemohiaghnpmihgemalmcblka

Local installation:

To use this extension locally:

• Install workspace dependencies with pnpm install at the root
• Run the extension locally with pnpm dev.
• Navigate to chrome://extensions in the browser
• Click "Load Unpacked", then select the dist directory of this workspace.

Acknowledgements

Built using: https://github.com/Jonghakseo/chrome-extension-boilerplate-react-vite

Core mechanism inspired by: https://github.com/alxHenry/chrome-postMessage-dev-tools